CVE-2026-7103 (GCVE-0-2026-7103)
Vulnerability from cvelistv5 – Published: 2026-04-27 08:30 – Updated: 2026-04-27 12:27 X_Freeware
VLAI
EPSS
VEX
Title
code-projects Chat System MD5 Hash update_user.php weak hash
Summary
A vulnerability was determined in code-projects Chat System 1.0. Affected is an unknown function of the file update_user.php of the component MD5 Hash Handler. This manipulation of the argument Password causes use of weak hash. The attack is possible to be carried out remotely. The attack's complexity is rated as high. The exploitability is told to be difficult. The exploit has been publicly disclosed and may be utilized.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-27 12:27 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/359678 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/359678/cti | signaturepermissions-required |
| https://vuldb.com/submit/800384 | third-party-advisory |
| https://gist.github.com/higordiego/84ae7f08f5c23d… | related |
| https://code-projects.org/ | product |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| code-projects | Chat System |
Affected:
1.0
cpe:2.3:a:code-projects:chat_system:*:*:*:*:*:*:*:* |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-7103",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-27T12:27:19.588102Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-27T12:27:23.279Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://gist.github.com/higordiego/84ae7f08f5c23debebf309de3920bda2"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:code-projects:chat_system:*:*:*:*:*:*:*:*"
],
"modules": [
"MD5 Hash Handler"
],
"product": "Chat System",
"vendor": "code-projects",
"versions": [
{
"status": "affected",
"version": "1.0"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "c4ttr4ck (VulDB User)"
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability was determined in code-projects Chat System 1.0. Affected is an unknown function of the file update_user.php of the component MD5 Hash Handler. This manipulation of the argument Password causes use of weak hash. The attack is possible to be carried out remotely. The attack\u0027s complexity is rated as high. The exploitability is told to be difficult. The exploit has been publicly disclosed and may be utilized."
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 6.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P",
"version": "4.0"
}
},
{
"cvssV3_1": {
"baseScore": 3.7,
"baseSeverity": "LOW",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R",
"version": "3.1"
}
},
{
"cvssV3_0": {
"baseScore": 3.7,
"baseSeverity": "LOW",
"vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 2.6,
"vectorString": "AV:N/AC:H/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:UR",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-328",
"description": "Use of Weak Hash",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-327",
"description": "Risky Cryptographic Algorithm",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-27T08:30:10.652Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-359678 | code-projects Chat System MD5 Hash update_user.php weak hash",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/vuln/359678"
},
{
"name": "VDB-359678 | CTI Indicators (IOB, IOC, TTP, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/vuln/359678/cti"
},
{
"name": "Submit #800384 | code-projects Chat System Using PHP 1.0 nsecure Direct Object Reference (IDOR) + SQL Injection + Weak Pa",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/submit/800384"
},
{
"tags": [
"related"
],
"url": "https://gist.github.com/higordiego/84ae7f08f5c23debebf309de3920bda2"
},
{
"tags": [
"product"
],
"url": "https://code-projects.org/"
}
],
"tags": [
"x_freeware"
],
"timeline": [
{
"lang": "en",
"time": "2026-04-26T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2026-04-26T02:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2026-04-26T11:09:44.000Z",
"value": "VulDB entry last update"
}
],
"title": "code-projects Chat System MD5 Hash update_user.php weak hash"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2026-7103",
"datePublished": "2026-04-27T08:30:10.652Z",
"dateReserved": "2026-04-26T09:04:38.568Z",
"dateUpdated": "2026-04-27T12:27:23.279Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-7103",
"date": "2026-11-12",
"epss": "0.00236",
"percentile": "0.14741"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"cpes": [
"cpe:2.3:a:code-projects:chat_system:*:*:*:*:*:*:*:*"
],
"modules": [
"MD5 Hash Handler"
],
"product": "Chat System",
"vendor": "code-projects",
"versions": [
{
"status": "affected",
"version": "1.0"
}
]
}
],
"source": "cna@vuldb.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability was determined in code-projects Chat System 1.0. Affected is an unknown function of the file update_user.php of the component MD5 Hash Handler. This manipulation of the argument Password causes use of weak hash. The attack is possible to be carried out remotely. The attack\u0027s complexity is rated as high. The exploitability is told to be difficult. The exploit has been publicly disclosed and may be utilized."
},
{
"lang": "es",
"value": "Una vulnerabilidad fue determinada en code-projects Chat System 1.0. Afectada es una funci\u00f3n desconocida del archivo update_user.PHP del componente MD5 Hash Gestor. Esta manipulaci\u00f3n del argumento Password causa el uso de hash d\u00e9bil. El ataque es posible de ser llevado a cabo remotamente. La complejidad del ataque es calificada como alta. La explotabilidad se dice que es dif\u00edcil. El exploit ha sido divulgado p\u00fablicamente y puede ser utilizado."
}
],
"id": "CVE-2026-7103",
"lastModified": "2026-10-26T00:10:00.150",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "LOW",
"cvssData": {
"accessComplexity": "HIGH",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 2.6,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:H/Au:N/C:P/I:N/A:N",
"version": "2.0"
},
"exploitabilityScore": 4.9,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "cna@vuldb.com",
"type": "Secondary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 3.7,
"baseSeverity": "LOW",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.2,
"impactScore": 1.4,
"source": "cna@vuldb.com",
"type": "Secondary"
}
],
"cvssMetricV40": [
{
"cvssData": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "HIGH",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 2.9,
"baseSeverity": "LOW",
"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "PROOF_OF_CONCEPT",
"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": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/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": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"source": "cna@vuldb.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-7103",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-27T12:27:19.588102Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-04-27T09:16:03.127",
"references": [
{
"source": "cna@vuldb.com",
"url": "https://code-projects.org/"
},
{
"source": "cna@vuldb.com",
"url": "https://gist.github.com/higordiego/84ae7f08f5c23debebf309de3920bda2"
},
{
"source": "cna@vuldb.com",
"url": "https://vuldb.com/submit/800384"
},
{
"source": "cna@vuldb.com",
"url": "https://vuldb.com/vuln/359678"
},
{
"source": "cna@vuldb.com",
"url": "https://vuldb.com/vuln/359678/cti"
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"url": "https://gist.github.com/higordiego/84ae7f08f5c23debebf309de3920bda2"
}
],
"sourceIdentifier": "cna@vuldb.com",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-327"
},
{
"lang": "en",
"value": "CWE-328"
}
],
"source": "cna@vuldb.com",
"type": "Secondary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2026-06-05T19:50:35+00:00",
"cve": "CVE-2026-7103",
"id": "CVE-2026-7103",
"initial_release_date": "2026-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "code-projects Chat System MD5 Hash update_user.php weak hash",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-7103.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-7103",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-27T12:27:19.588102Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-27T12:26:45.323Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://gist.github.com/higordiego/84ae7f08f5c23debebf309de3920bda2"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:code-projects:chat_system:*:*:*:*:*:*:*:*"
],
"modules": [
"MD5 Hash Handler"
],
"product": "Chat System",
"vendor": "code-projects",
"versions": [
{
"status": "affected",
"version": "1.0"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "c4ttr4ck (VulDB User)"
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability was determined in code-projects Chat System 1.0. Affected is an unknown function of the file update_user.php of the component MD5 Hash Handler. This manipulation of the argument Password causes use of weak hash. The attack is possible to be carried out remotely. The attack\u0027s complexity is rated as high. The exploitability is told to be difficult. The exploit has been publicly disclosed and may be utilized."
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 6.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P",
"version": "4.0"
}
},
{
"cvssV3_1": {
"baseScore": 3.7,
"baseSeverity": "LOW",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R",
"version": "3.1"
}
},
{
"cvssV3_0": {
"baseScore": 3.7,
"baseSeverity": "LOW",
"vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 2.6,
"vectorString": "AV:N/AC:H/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:UR",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-328",
"description": "Use of Weak Hash",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-327",
"description": "Risky Cryptographic Algorithm",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-27T08:30:10.652Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-359678 | code-projects Chat System MD5 Hash update_user.php weak hash",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/vuln/359678"
},
{
"name": "VDB-359678 | CTI Indicators (IOB, IOC, TTP, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/vuln/359678/cti"
},
{
"name": "Submit #800384 | code-projects Chat System Using PHP 1.0 nsecure Direct Object Reference (IDOR) + SQL Injection + Weak Pa",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/submit/800384"
},
{
"tags": [
"related"
],
"url": "https://gist.github.com/higordiego/84ae7f08f5c23debebf309de3920bda2"
},
{
"tags": [
"product"
],
"url": "https://code-projects.org/"
}
],
"tags": [
"x_freeware"
],
"timeline": [
{
"lang": "en",
"time": "2026-04-26T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2026-04-26T02:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2026-04-26T11:09:44.000Z",
"value": "VulDB entry last update"
}
],
"title": "code-projects Chat System MD5 Hash update_user.php weak hash"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2026-7103",
"datePublished": "2026-04-27T08:30:10.652Z",
"dateReserved": "2026-04-26T09:04:38.568Z",
"dateUpdated": "2026-04-27T12:27:23.279Z",
"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
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
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.