CVE-2026-127084
Teable before 2026-10-12T12-45-53Z.3331 Stored XSS via Attachment Uploads
Teable before 2026-10-12T12-45-53Z.3331 contains a stored cross-site scripting vulnerability that allows authenticated users to upload SVG or HTML attachments with an attacker-chosen content type. Attackers can send the same-origin /api/attachments/read URL, served inline with an empty Content-Security-Policy, to run script with the victim's session and perform API actions.
Fixes and workarounds
Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: VulnCheckAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| teable teableio teableio/teable
github |
≥ 0; < 2026-10-12T12-45-53Z.3331 (affected, custom)
Other versions: unaffected |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 8.5 high |
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N | CNA: VulnCheck |
| 3.1 / 7.3 high |
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N | CNA: VulnCheck |
| 4.0 / 8.5 high |
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/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 | NVD: [email protected] |
| 3.1 / 7.3 high |
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N | NVD: [email protected] |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://github.com/teableio/teable/security/advisories/GHSA-2fm5-fcfx-hq5fCNA: VulnCheck · vendor-advisory
- https://github.com/teableio/teable/commit/3c1c4646bfddfb14b1f2fbab8d0e1189969fa304CNA: VulnCheck · patch
- https://github.com/teableio/teable/releases/tag/release.2026-10-12T12-45-53Z.3331CNA: VulnCheck · release-notes
- https://github.com/teableio/teable/blob/5ef2238883cad7c3980084de9a9031135fb9734f/apps/nestjs-backend/src/features/attachments/attachments.controller.ts#L52-L71CNA: VulnCheck · technical-description
- https://www.vulncheck.com/advisories/teable-before-2026-10-12t12-45-53z-3331-stored-xss-via-attachment-uploadsCNA: VulnCheck · third-party-advisory
- https://github.com/teableio/teable/blob/5ef2238883cad7c3980084de9a9031135fb9734f/apps/nestjs-backend/src/features/attachments/attachments.controller.ts#L52-L71[email protected]
- https://github.com/teableio/teable/commit/3c1c4646bfddfb14b1f2fbab8d0e1189969fa304[email protected]
- https://github.com/teableio/teable/releases/tag/release.2026-10-12T12-45-53Z.3331[email protected]
- https://github.com/teableio/teable/security/advisories/GHSA-2fm5-fcfx-hq5f[email protected]
- https://www.vulncheck.com/advisories/teable-before-2026-10-12t12-45-53z-3331-stored-xss-via-attachment-uploads[email protected]
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