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4 vulnerabilities found for bbs-go by mlogclub
CVE-2026-110103 (GCVE-0-2026-110103)
Vulnerability from nvd – Published: 2026-10-13 16:53 – Updated: 2026-10-13 16:53
VLAI
EPSS
VEX
Title
bbs-go through 4.4.6 Stored XSS via Image Upload Content-Type
Summary
bbs-go through 4.4.6 contains a stored cross-site scripting vulnerability that allows authenticated users to upload HTML or SVG files by spoofing the multipart Content-Type in POST /api/upload. Attackers can upload script-bearing documents served inline from /res and send their URLs to administrators, executing script on the forum's origin.
Severity
5.4 (Medium)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/mlogclub/bbs-go/issues/305 | issue-trackingtechnical-description |
| https://github.com/mlogclub/bbs-go/blob/v4.4.6/in… | technical-description |
| https://github.com/mlogclub/bbs-go/blob/v4.4.6/in… | technical-description |
| https://github.com/mlogclub/bbs-go/pull/306 | patchissue-tracking |
| https://github.com/mlogclub/bbs-go/commit/5bebf98… | patch |
| https://www.vulncheck.com/advisories/bbs-go-throu… | third-party-advisory |
Impacted products
Date Public
2026-10-08 00:00
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CVE-2026-103396 (GCVE-0-2026-103396)
Vulnerability from nvd – Published: 2026-09-30 14:48 – Updated: 2026-09-30 16:57
VLAI
EPSS
VEX
Title
bbs-go through 4.4.6 Incorrect Authorization via /api/admin/user/synccount
Summary
bbs-go through 4.4.6 contains a permission bypass vulnerability in the AdminMiddleware authorization logic where the read-only dashboard.user.view permission rule matches the /api/admin/user/synccount endpoint before the intended dashboard.user.update rule. Authenticated users with only view permissions can call the synccount endpoint to trigger expensive full-table user recounts and cache invalidations, causing denial of service through repeated concurrent database operations.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 16:57 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/mlogclub/bbs-go/issues/303 | issue-tracking |
| https://github.com/mlogclub/bbs-go/commit/97d0bb3… | patch |
| https://github.com/mlogclub/bbs-go/blob/v4.4.6/in… | technical-description |
| https://github.com/mlogclub/bbs-go/blob/v4.4.6/in… | technical-description |
| https://github.com/mlogclub/bbs-go | product |
| https://www.vulncheck.com/advisories/bbs-go-throu… | third-party-advisory |
Impacted products
Date Public
2026-09-17 00:00
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CVE-2026-110103 (GCVE-0-2026-110103)
Vulnerability from cvelistv5 – Published: 2026-10-13 16:53 – Updated: 2026-10-13 16:53
VLAI
EPSS
VEX
Title
bbs-go through 4.4.6 Stored XSS via Image Upload Content-Type
Summary
bbs-go through 4.4.6 contains a stored cross-site scripting vulnerability that allows authenticated users to upload HTML or SVG files by spoofing the multipart Content-Type in POST /api/upload. Attackers can upload script-bearing documents served inline from /res and send their URLs to administrators, executing script on the forum's origin.
Severity
5.4 (Medium)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/mlogclub/bbs-go/issues/305 | issue-trackingtechnical-description |
| https://github.com/mlogclub/bbs-go/blob/v4.4.6/in… | technical-description |
| https://github.com/mlogclub/bbs-go/blob/v4.4.6/in… | technical-description |
| https://github.com/mlogclub/bbs-go/pull/306 | patchissue-tracking |
| https://github.com/mlogclub/bbs-go/commit/5bebf98… | patch |
| https://www.vulncheck.com/advisories/bbs-go-throu… | third-party-advisory |
Impacted products
Date Public
2026-10-08 00:00
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CVE-2026-103396 (GCVE-0-2026-103396)
Vulnerability from cvelistv5 – Published: 2026-09-30 14:48 – Updated: 2026-09-30 16:57
VLAI
EPSS
VEX
Title
bbs-go through 4.4.6 Incorrect Authorization via /api/admin/user/synccount
Summary
bbs-go through 4.4.6 contains a permission bypass vulnerability in the AdminMiddleware authorization logic where the read-only dashboard.user.view permission rule matches the /api/admin/user/synccount endpoint before the intended dashboard.user.update rule. Authenticated users with only view permissions can call the synccount endpoint to trigger expensive full-table user recounts and cache invalidations, causing denial of service through repeated concurrent database operations.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 16:57 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/mlogclub/bbs-go/issues/303 | issue-tracking |
| https://github.com/mlogclub/bbs-go/commit/97d0bb3… | patch |
| https://github.com/mlogclub/bbs-go/blob/v4.4.6/in… | technical-description |
| https://github.com/mlogclub/bbs-go/blob/v4.4.6/in… | technical-description |
| https://github.com/mlogclub/bbs-go | product |
| https://www.vulncheck.com/advisories/bbs-go-throu… | third-party-advisory |
Impacted products
Date Public
2026-09-17 00:00
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"value": "bbs-go through 4.4.6 contains a permission bypass vulnerability in the AdminMiddleware authorization logic where the read-only dashboard.user.view permission rule matches the /api/admin/user/synccount endpoint before the intended dashboard.user.update rule. Authenticated users with only view permissions can call the synccount endpoint to trigger expensive full-table user recounts and cache invalidations, causing denial of service through repeated concurrent database operations."
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{
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"url": "https://github.com/mlogclub/bbs-go/commit/97d0bb3dcbacd686fd5300295afbf4f4a5da7609"
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"url": "https://github.com/mlogclub/bbs-go/blob/v4.4.6/internal/permissions/admin_permission_registry.go#L59-L60"
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"url": "https://github.com/mlogclub/bbs-go/blob/v4.4.6/internal/handlers/admin/user_handlers.go#L47-L59"
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{
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"url": "https://github.com/mlogclub/bbs-go"
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{
"name": "VulnCheck Advisory: bbs-go through 4.4.6 Incorrect Authorization via /api/admin/user/synccount",
"tags": [
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"url": "https://www.vulncheck.com/advisories/bbs-go-through-4.4.6-incorrect-authorization-via-api-admin-user-synccount"
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"title": "bbs-go through 4.4.6 Incorrect Authorization via /api/admin/user/synccount",
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"dateReserved": "2026-09-30T14:28:17.453Z",
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