CVE-2026-105454 (GCVE-0-2026-105454)
Vulnerability from cvelistv5 – Published: 2026-10-30 15:34 – Updated: 2026-10-30 17:18 X_Open Source
VLAI
EPSS
VEX
Title
Stored XSS via crafted URLs in HTML ticket content in Request Tracker
Summary
RT's automatic link creation for URLs in HTML ticket content does
not HTML-escape the URL it places in the link. A URL crafted to
break out of the link's address can add a script that runs when the
ticket history is displayed, with no further action by the viewer.
Anyone who can add HTML content to a ticket can plant it. That
includes an unauthenticated sender of HTML email to any queue that
grants CreateTicket or ReplyToTicket to Everyone, which is routine
for a queue that accepts mail from the public. The script runs in
the session of any user who views the ticket, and can act in RT
with that user's authority.
This issue was fixed in version 5.0.11 and 6.0.4
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 17:05 UTC
CWE
- CWE-79 - Improper neutralization of input during web page generation ('cross-site scripting')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://cert.pl/en/posts/2026/10/CVE-2026-105454 | third-party-advisory |
| https://requesttracker.com/request-tracker/ | product |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Best Practical Solutions | Request Tracker |
Affected:
5.0.0 , < 5.0.11
(semver)
Affected: 6.0.0 , < 6.0.4 (semver) cpe:2.3:a:best_practical_solutions:request_tracker:*:*:*:*:*:*:*:* cpe:2.3:a:best_practical_solutions:request_tracker:*:*:*:*:*:*:*:* |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-105454",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-30T17:05:55.793778Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-30T17:18:21.963Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Request Tracker",
"repo": "https://github.com/bestpractical/rtir",
"vendor": "Best Practical Solutions",
"versions": [
{
"lessThan": "5.0.11",
"status": "affected",
"version": "5.0.0",
"versionType": "semver"
},
{
"lessThan": "6.0.4",
"status": "affected",
"version": "6.0.0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:best_practical_solutions:request_tracker:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.0.11",
"versionStartIncluding": "5.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:best_practical_solutions:request_tracker:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.0.4",
"versionStartIncluding": "6.0.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "OR"
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Mateusz Szymaniec (CERT.PL)"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "RT\u0027s automatic link creation for URLs in HTML ticket content does\n not HTML-escape the URL it places in the link. A URL crafted to\n break out of the link\u0027s address can add a script that runs when the\n ticket history is displayed, with no further action by the viewer.\n Anyone who can add HTML content to a ticket can plant it. That\n includes an unauthenticated sender of HTML email to any queue that\n grants CreateTicket or ReplyToTicket to Everyone, which is routine\n for a queue that accepts mail from the public. The script runs in\n the session of any user who views the ticket, and can act in RT\n with that user\u0027s authority.\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003eThis issue was fixed in version\u0026nbsp;5.0.11 and 6.0.4\u003c/div\u003e"
}
],
"value": "RT\u0027s automatic link creation for URLs in HTML ticket content does\n not HTML-escape the URL it places in the link. A URL crafted to\n break out of the link\u0027s address can add a script that runs when the\n ticket history is displayed, with no further action by the viewer.\n Anyone who can add HTML content to a ticket can plant it. That\n includes an unauthenticated sender of HTML email to any queue that\n grants CreateTicket or ReplyToTicket to Everyone, which is routine\n for a queue that accepts mail from the public. The script runs in\n the session of any user who views the ticket, and can act in RT\n with that user\u0027s authority.\n\n\nThis issue was fixed in version\u00a05.0.11 and 6.0.4"
}
],
"impacts": [
{
"capecId": "CAPEC-592",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-592 Stored XSS"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "LOW",
"subIntegrityImpact": "LOW",
"userInteraction": "PASSIVE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "LOW",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "CWE-79 Improper neutralization of input during web page generation (\u0027cross-site scripting\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-30T15:34:57.607Z",
"orgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6",
"shortName": "CERT-PL"
},
"references": [
{
"tags": [
"third-party-advisory"
],
"url": "https://cert.pl/en/posts/2026/10/CVE-2026-105454"
},
{
"tags": [
"product"
],
"url": "https://requesttracker.com/request-tracker/"
}
],
"source": {
"discovery": "INTERNAL"
},
"tags": [
"x_open-source"
],
"title": "Stored XSS via crafted URLs in HTML ticket content in Request Tracker",
"workarounds": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Set @Active_MakeClicky to an empty list in\n RT_SiteConfig.pm and restart the web server. This disables\n automatic link creation for URLs in ticket content."
}
],
"value": "Set @Active_MakeClicky to an empty list in\n RT_SiteConfig.pm and restart the web server. This disables\n automatic link creation for URLs in ticket content."
}
],
"x_generator": {
"engine": "Vulnogram 1.0.3"
}
}
},
"cveMetadata": {
"assignerOrgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6",
"assignerShortName": "CERT-PL",
"cveId": "CVE-2026-105454",
"datePublished": "2026-10-30T15:34:57.607Z",
"dateReserved": "2026-10-05T14:00:11.458Z",
"dateUpdated": "2026-10-30T17:18:21.963Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-105454",
"date": "2026-11-01",
"epss": "0.00436",
"percentile": "0.37921"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Request Tracker",
"repo": "https://github.com/bestpractical/rtir",
"vendor": "Best Practical Solutions",
"versions": [
{
"lessThan": "5.0.11",
"status": "affected",
"version": "5.0.0",
"versionType": "semver"
},
{
"lessThan": "6.0.4",
"status": "affected",
"version": "6.0.0",
"versionType": "semver"
}
]
}
],
"source": "cvd@cert.pl"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "RT\u0027s automatic link creation for URLs in HTML ticket content does\n not HTML-escape the URL it places in the link. A URL crafted to\n break out of the link\u0027s address can add a script that runs when the\n ticket history is displayed, with no further action by the viewer.\n Anyone who can add HTML content to a ticket can plant it. That\n includes an unauthenticated sender of HTML email to any queue that\n grants CreateTicket or ReplyToTicket to Everyone, which is routine\n for a queue that accepts mail from the public. The script runs in\n the session of any user who views the ticket, and can act in RT\n with that user\u0027s authority.\n\n\nThis issue was fixed in version\u00a05.0.11 and 6.0.4"
}
],
"id": "CVE-2026-105454",
"lastModified": "2026-10-30T19:37:07.073",
"metrics": {
"cvssMetricV40": [
{
"cvssData": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "LOW",
"subIntegrityImpact": "LOW",
"userInteraction": "PASSIVE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "LOW",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"source": "cvd@cert.pl",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-105454",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-30T17:05:55.793778Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-10-30T16:17:36.860",
"references": [
{
"source": "cvd@cert.pl",
"url": "https://cert.pl/en/posts/2026/10/CVE-2026-105454"
},
{
"source": "cvd@cert.pl",
"url": "https://requesttracker.com/request-tracker/"
}
],
"sourceIdentifier": "cvd@cert.pl",
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-79"
}
],
"source": "cvd@cert.pl",
"type": "Secondary"
}
]
}
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-105454",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-30T17:05:55.793778Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-30T17:08:35.074Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Request Tracker",
"repo": "https://github.com/bestpractical/rtir",
"vendor": "Best Practical Solutions",
"versions": [
{
"lessThan": "5.0.11",
"status": "affected",
"version": "5.0.0",
"versionType": "semver"
},
{
"lessThan": "6.0.4",
"status": "affected",
"version": "6.0.0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:best_practical_solutions:request_tracker:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.0.11",
"versionStartIncluding": "5.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:best_practical_solutions:request_tracker:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.0.4",
"versionStartIncluding": "6.0.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "OR"
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Mateusz Szymaniec (CERT.PL)"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "RT\u0027s automatic link creation for URLs in HTML ticket content does\n not HTML-escape the URL it places in the link. A URL crafted to\n break out of the link\u0027s address can add a script that runs when the\n ticket history is displayed, with no further action by the viewer.\n Anyone who can add HTML content to a ticket can plant it. That\n includes an unauthenticated sender of HTML email to any queue that\n grants CreateTicket or ReplyToTicket to Everyone, which is routine\n for a queue that accepts mail from the public. The script runs in\n the session of any user who views the ticket, and can act in RT\n with that user\u0027s authority.\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003eThis issue was fixed in version\u0026nbsp;5.0.11 and 6.0.4\u003c/div\u003e"
}
],
"value": "RT\u0027s automatic link creation for URLs in HTML ticket content does\n not HTML-escape the URL it places in the link. A URL crafted to\n break out of the link\u0027s address can add a script that runs when the\n ticket history is displayed, with no further action by the viewer.\n Anyone who can add HTML content to a ticket can plant it. That\n includes an unauthenticated sender of HTML email to any queue that\n grants CreateTicket or ReplyToTicket to Everyone, which is routine\n for a queue that accepts mail from the public. The script runs in\n the session of any user who views the ticket, and can act in RT\n with that user\u0027s authority.\n\n\nThis issue was fixed in version\u00a05.0.11 and 6.0.4"
}
],
"impacts": [
{
"capecId": "CAPEC-592",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-592 Stored XSS"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "LOW",
"subIntegrityImpact": "LOW",
"userInteraction": "PASSIVE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "LOW",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "CWE-79 Improper neutralization of input during web page generation (\u0027cross-site scripting\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-30T15:34:57.607Z",
"orgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6",
"shortName": "CERT-PL"
},
"references": [
{
"tags": [
"third-party-advisory"
],
"url": "https://cert.pl/en/posts/2026/10/CVE-2026-105454"
},
{
"tags": [
"product"
],
"url": "https://requesttracker.com/request-tracker/"
}
],
"source": {
"discovery": "INTERNAL"
},
"tags": [
"x_open-source"
],
"title": "Stored XSS via crafted URLs in HTML ticket content in Request Tracker",
"workarounds": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Set @Active_MakeClicky to an empty list in\n RT_SiteConfig.pm and restart the web server. This disables\n automatic link creation for URLs in ticket content."
}
],
"value": "Set @Active_MakeClicky to an empty list in\n RT_SiteConfig.pm and restart the web server. This disables\n automatic link creation for URLs in ticket content."
}
],
"x_generator": {
"engine": "Vulnogram 1.0.3"
}
}
},
"cveMetadata": {
"assignerOrgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6",
"assignerShortName": "CERT-PL",
"cveId": "CVE-2026-105454",
"datePublished": "2026-10-30T15:34:57.607Z",
"dateReserved": "2026-10-05T14:00:11.458Z",
"dateUpdated": "2026-10-30T17:18:21.963Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
Loading timeline…
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.