CVE-2026-116212: Webasyst Framework through 4.4.0 Stored XSS via Photos Album URL

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-26 · updated 2026-10-26
Weakness: CWE-79

Description

Webasyst Framework through 4.4.0 contains a stored cross-site scripting vulnerability in the Photos app that allows authenticated backend users to inject JavaScript via the album url parameter. Attackers with album edit rights can save a url value that breaks out of the unescaped attribute in DialogAlbumSettings.html, executing JavaScript in administrators' backend sessions.

Affected products

Webasyst Framework: through 4.4.0

References

https://github.com/webasyst/webasyst-framework
https://github.com/webasyst/webasyst-framework/blob/cc609e5db23e68d982e15ebf65bf9d25120333af/wa-apps/photos/lib/actions/album/photosAlbumSave.controller.php#L107
https://github.com/webasyst/webasyst-framework/blob/cc609e5db23e68d982e15ebf65bf9d25120333af/wa-apps/photos/templates/actions/dialog/DialogAlbumSettings.html#L36
https://github.com/webasyst/webasyst-framework/issues/395
https://www.vulncheck.com/advisories/webasyst-framework-through-4.4.0-stored-xss-via-photos-album-url

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