CVE-2026-122059 json
WP ImageViewer <= 3.0.2 - Authenticated (Subscriber+) Stored DOM-Based Cross-Site Scripting via Image 'alt' Attribute
published 4d ago modified 4d ago also EUVD-2026-119140
- cvss
- 6.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 28%
- public exploits
- 0
- none known
Summary
The WP ImageViewer plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via the 'img.alt' parameter in all versions up to, and including, 3.0.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires a front-end content plugin such as bbPress to be active, as it grants Subscriber-level users the bbp_participant capability needed to publish image-bearing content containing the encoded payload. Exploitation by attackers with contributor-level access and above requires that the site allows Contributors (or higher) to submit image HTML in post content — the WordPress default. On a default installation, where that is not configured, the vulnerability requires attackers with custom-level access and above.
Patch / fix
Is CVE-2026-122059 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4d ago
Exploit prediction
0.35% chance of exploitation in the next 30 days, higher than 28% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
Affected products
- mpol WP ImageViewer
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- codeberg.org /cyclotouriste/wp-imageviewer/commit/44601a13af7f7874c62c98956c6747322a6ab3c0
- wordfence.com /threat-intel/vulnerabilities/id/2d3f78b4-04c7-4978-919f-997b39307c5b?source=cve
- plugins.trac.wordpress.org /browser/wp-imageviewer/tags/3.0.2/wp-imageviewer-init.js#L224
- plugins.trac.wordpress.org /browser/wp-imageviewer/tags/3.0.2/wp-imageviewer-init.js#L132
- plugins.trac.wordpress.org /browser/wp-imageviewer/tags/3.0.2/wp-imageviewer-init.js#L139
- plugins.trac.wordpress.org /browser/wp-imageviewer/tags/3.0.3/wp-imageviewer-init.js
Sources
- CVE List CVE-2026-122059
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.