Papra: Cross-organization tag deletion and modification via authenticated cross-tenant request
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.
Summary
Papra is a minimalistic document management and archiving platform. Prior to version 26.5.0, an authenticated user who is a member of any organization can delete or rename tags belonging to a different organization, given the target tag's ID. The route handler verifies the caller's membership of the ":organizationId" in the URL, but the repository write filters on tag.id alone, so the URL-level org scope never reaches the database. This issue has been patched in version 26.5.0.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA papra (papra-hq) Fixed in 26.5.0
Timeline
- 2026-10-02 Threatist record created from CVE-2026-48052
References
More papra-hq vulnerabilities
- TI-2026-27590 Papra has an HTML Injection in Transactional Emails via Unescaped User Display Name CVSS 3.1MEDIUM 5.4
- TI-2026-27591 Papra has a Blind Server-Side Request Forgery (SSRF) via Webhook URL CVSS 3.1MEDIUM 5.0
- TI-2026-27592 Papra Does Not Reject Expired API Keys CVSS 3.1MEDIUM 4.3
- TI-2026-35493 Papra: SSRF via HTTP redirect bypass in webhook delivery CVSS 3.1LOW 3.5
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences