What’s Vulnerable › Vulnerabilities

CVE-2026-13543: Documenso Google OAuth Login handle-oauth-callback-url.ts improper authentication

• Severity: medium (CVSS 5.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-29 · updated 2026-06-29
• Weakness: CWE-287

Description

A vulnerability was detected in Documenso up to 2.11.0. Affected by this vulnerability is an unknown functionality of the file packages/auth/server/lib/utils/handle-oauth-callback-url.ts of the component Google OAuth Login. The manipulation results in improper authentication. It is possible to launch the attack remotely. This attack is characterized by high complexity. The exploitation appears to be difficult. The exploit is now public and may be used. The pull request to fix this issue awaits acceptance.

Affected products

• Documenso: 2.0, 2.1, 2.2, 2.3, 2.4, 2.5 (+6)

References

• https://github.com/documenso/documenso/
• https://github.com/documenso/documenso/issues/2758
• https://github.com/documenso/documenso/pull/2837
• https://vuldb.com/cve/CVE-2026-13543
• https://vuldb.com/submit/842579
• https://vuldb.com/vuln/374551
• https://vuldb.com/vuln/374551/cti

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