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6 vulnerabilities by forem
CVE-2026-61696 (GCVE-0-2026-61696)
Vulnerability from nvd – Published: 2026-08-18 17:57 – Updated: 2026-08-18 18:15
VLAI
EPSS
VEX
Title
Forem: Stored XSS in Admin Abuse Report Rendering
Summary
Forem is open source software for building communities. In versions before commit 92eacd16a82cf9007ba8e16a2258b42e3b53ca9c, a malicious value submitted through feedback_message[message] is stored without sanitization and rendered in app/views/admin/feedback_messages/_feedback_message.html.erb through raw(feedback_message.message) when offender_id is present. Viewing the abuse report executes arbitrary JavaScript in an administrator's browser and may expose sensitive in-page data, abuse CSRF tokens, or perform administrative actions in the victim's session. The public FeedbackMessagesController accepts the report without authorization and previously permitted a submitted offender_id, making the vulnerable rendering path reachable by an unauthenticated attacker. This issue is fixed in commit 92eacd16a82cf9007ba8e16a2258b42e3b53ca9c
Severity
6.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 18:15 UTC
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/forem/forem/security/advisorie… | x_refsource_CONFIRM |
| https://github.com/forem/forem/commit/92eacd16a82… | x_refsource_MISC |
Impacted products
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"vendor": "forem",
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"descriptions": [
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}
],
"metrics": [
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"userInteraction": "REQUIRED",
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},
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"dataVersion": "5.2"
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CVE-2026-48780 (GCVE-0-2026-48780)
Vulnerability from nvd – Published: 2026-06-16 14:10 – Updated: 2026-06-17 13:49
VLAI
EPSS
VEX
Title
Forem vulnerable to bypass of email address domain restrictions
Summary
Forem is open source software for building communities. Prior to commit a2ab6d4, a maliciously crafted email address could allow an attacker to bypass domain allowlist or denylist restrictions and gain access to invite-only forem deployments. The issue is patched as of `a2ab6d4`. As a workaround, some SMTP servers and email delivery providers may drop or refuse to send maliciously crafted email addresses.
Severity
8.2 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-17 13:49 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/forem/forem/security/advisorie… | x_refsource_CONFIRM |
| https://github.com/forem/forem/commit/a2ab6d409d2… | x_refsource_MISC |
{
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{
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{
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},
{
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}
],
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"timestamp": "2026-06-17T13:49:19.212215Z",
"version": "2.0.3"
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}
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"title": "CISA ADP Vulnrichment"
}
],
"cna": {
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"vendor": "forem",
"versions": [
{
"status": "affected",
"version": "\u003c a2ab6d4"
}
]
}
],
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{
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}
],
"metrics": [
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"attackVector": "NETWORK",
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"integrityImpact": "LOW",
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"scope": "UNCHANGED",
"userInteraction": "NONE",
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}
CVE-2023-27160 (GCVE-0-2023-27160)
Vulnerability from nvd – Published: 2023-03-31 00:00 – Updated: 2026-07-09 00:24
VLAI
EPSS
VEX
Summary
forem up to v2022.11.11 was discovered to contain a Server-Side Request Forgery (SSRF) via the component /articles/{id}. This vulnerability allows attackers to access network resources and sensitive information via a crafted POST request.
Severity
7.2 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-18 16:10 UTC
CWE
- n/a
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
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"url": "https://notes.sjtu.edu.cn/s/MUUhEymt7"
},
{
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"x_transferred"
],
"url": "https://gist.github.com/b33t1e/6172286862a4486b5888f3cbbdc6316d"
}
],
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},
{
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"state": "PUBLISHED"
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"dataType": "CVE_RECORD",
"dataVersion": "5.2"
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CVE-2026-61696 (GCVE-0-2026-61696)
Vulnerability from cvelistv5 – Published: 2026-08-18 17:57 – Updated: 2026-08-18 18:15
VLAI
EPSS
VEX
Title
Forem: Stored XSS in Admin Abuse Report Rendering
Summary
Forem is open source software for building communities. In versions before commit 92eacd16a82cf9007ba8e16a2258b42e3b53ca9c, a malicious value submitted through feedback_message[message] is stored without sanitization and rendered in app/views/admin/feedback_messages/_feedback_message.html.erb through raw(feedback_message.message) when offender_id is present. Viewing the abuse report executes arbitrary JavaScript in an administrator's browser and may expose sensitive in-page data, abuse CSRF tokens, or perform administrative actions in the victim's session. The public FeedbackMessagesController accepts the report without authorization and previously permitted a submitted offender_id, making the vulnerable rendering path reachable by an unauthenticated attacker. This issue is fixed in commit 92eacd16a82cf9007ba8e16a2258b42e3b53ca9c
Severity
6.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 18:15 UTC
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/forem/forem/security/advisorie… | x_refsource_CONFIRM |
| https://github.com/forem/forem/commit/92eacd16a82… | x_refsource_MISC |
Impacted products
{
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],
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}
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}
],
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"vendor": "forem",
"versions": [
{
"status": "affected",
"version": "\u003c 92eacd16a82cf9007ba8e16a2258b42e3b53ca9c"
}
]
}
],
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}
],
"metrics": [
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"attackVector": "NETWORK",
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"baseScore": 6.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
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}
}
],
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}
]
},
{
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"description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
"lang": "en",
"type": "CWE"
}
]
},
{
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"description": "CWE-116: Improper Encoding or Escaping of Output",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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{
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"source": {
"advisory": "GHSA-4463-499m-94mx",
"discovery": "UNKNOWN"
},
"title": "Forem: Stored XSS in Admin Abuse Report Rendering"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-61696",
"datePublished": "2026-08-18T17:57:07.736Z",
"dateReserved": "2026-07-10T18:36:58.851Z",
"dateUpdated": "2026-08-18T18:15:34.952Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-48780 (GCVE-0-2026-48780)
Vulnerability from cvelistv5 – Published: 2026-06-16 14:10 – Updated: 2026-06-17 13:49
VLAI
EPSS
VEX
Title
Forem vulnerable to bypass of email address domain restrictions
Summary
Forem is open source software for building communities. Prior to commit a2ab6d4, a maliciously crafted email address could allow an attacker to bypass domain allowlist or denylist restrictions and gain access to invite-only forem deployments. The issue is patched as of `a2ab6d4`. As a workaround, some SMTP servers and email delivery providers may drop or refuse to send maliciously crafted email addresses.
Severity
8.2 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-17 13:49 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/forem/forem/security/advisorie… | x_refsource_CONFIRM |
| https://github.com/forem/forem/commit/a2ab6d409d2… | x_refsource_MISC |
{
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{
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{
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"options": [
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},
{
"Technical Impact": "partial"
}
],
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"timestamp": "2026-06-17T13:49:19.212215Z",
"version": "2.0.3"
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},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
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CVE-2023-27160 (GCVE-0-2023-27160)
Vulnerability from cvelistv5 – Published: 2023-03-31 00:00 – Updated: 2026-07-09 00:24
VLAI
EPSS
VEX
Summary
forem up to v2022.11.11 was discovered to contain a Server-Side Request Forgery (SSRF) via the component /articles/{id}. This vulnerability allows attackers to access network resources and sensitive information via a crafted POST request.
Severity
7.2 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-18 16:10 UTC
CWE
- n/a
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
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