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Vulnerability record · CVE-2026-59965 · published 15 September 2026

CVE-2026-59965: Incorrect authorization vulnerability

Payload Plugins is a collection of plugins designed to enhance Payload CMS. In 0.7.0, @jhb.software/payload-alt-text-plugin exposes POST /api/alt-text-plugin/generate and POST /api/alt-text-plugin/bulk with a default guard that accepts any authenticated user, while alt-text/src/endpoints/generateAltText.ts and alt-text/src/endpoints/bulkGenerateAltTexts.ts call req.payload.findByID and req.payload.update without overrideAccess: false. Payload therefore defaults overrideAccess to true and skips the target collection's read and update access functions. An authenticated low-privilege user can supply id, collection, locale, and update values to read arbitrary protected upload documents and overwrite their alt and keywords fields, even when the collection permits those operations only to administrators. A control Local API call with overrideAccess: false is denied, confirming that the plugin endpoint bypasses otherwise effective collection rules. This vulnerability is fixed in 0.8.0.

7.1 CVSS 3.1 High EPSS 0.38% · top 70.9% CWE-863 · Incorrect authorization Received
7.1CVSS 3.1 base score
0.38%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
17 Sep 2026Last modified by NVD

Description

Payload Plugins is a collection of plugins designed to enhance Payload CMS. In 0.7.0, @jhb.software/payload-alt-text-plugin exposes POST /api/alt-text-plugin/generate and POST /api/alt-text-plugin/bulk with a default guard that accepts any authenticated user, while alt-text/src/endpoints/generateAltText.ts and alt-text/src/endpoints/bulkGenerateAltTexts.ts call req.payload.findByID and req.payload.update without overrideAccess: false. Payload therefore defaults overrideAccess to true and skips the target collection's read and update access functions. An authenticated low-privilege user can supply id, collection, locale, and update values to read arbitrary protected upload documents and overwrite their alt and keywords fields, even when the collection permits those operations only to administrators. A control Local API call with overrideAccess: false is denied, confirming that the plugin endpoint bypasses otherwise effective collection rules. This vulnerability is fixed in 0.8.0.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

References

LinkTags
https://github.com/jhb-software/payload-plugins/commit/e39634868ce13a414e2981e219befc58101654d3
https://github.com/jhb-software/payload-plugins/pull/159
https://github.com/jhb-software/payload-plugins/releases/tag/[email protected]
https://github.com/jhb-software/payload-plugins/security/advisories/GHSA-4qpv-39hg-f7fx
https://github.com/jhb-software/payload-plugins/security/advisories/GHSA-4qpv-39hg-f7fx

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Source: NIST National Vulnerability Database (record CVE-2026-59965), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.