CVE-2026-122059
WP ImageViewer <= 3.0.2 - Authenticated (Subscriber+) Stored DOM-Based Cross-Site Scripting via Image 'alt' Attribute
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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| WP ImageViewer mpol |
≥ 0; ≤ 3.0.2 (affected, semver)
Other versions: unaffected |
CNA: Wordfence |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 6.4 medium |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N | CNA: Wordfence |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/2d3f78b4-04c7-4978-919f-997b39307c5b?source=cveCNA: Wordfence
- https://plugins.trac.wordpress.org/browser/wp-imageviewer/tags/3.0.2/wp-imageviewer-init.js#L224CNA: Wordfence
- https://plugins.trac.wordpress.org/browser/wp-imageviewer/tags/3.0.2/wp-imageviewer-init.js#L132CNA: Wordfence
- https://plugins.trac.wordpress.org/browser/wp-imageviewer/tags/3.0.2/wp-imageviewer-init.js#L139CNA: Wordfence
- https://codeberg.org/cyclotouriste/wp-imageviewer/commit/44601a13af7f7874c62c98956c6747322a6ab3c0CNA: Wordfence
- https://plugins.trac.wordpress.org/browser/wp-imageviewer/tags/3.0.3/wp-imageviewer-init.jsCNA: Wordfence
For agents and automation
Read public disclosures for free as Markdown or JSON. Compatible browsers also expose native WebMCP tools to search disclosures, read this page, and discover API access.
Use the ontology-linked Cyber API with x402 pay per request, or a Y2 Pro or Elite API key with the intel:cyber scope.
Endpoints and access details
https://api.y2.dev/api/v2/cyber/cveshttps://api.y2.dev/api/v2/cyber/cves/{cveId}
A workspace owner or admin can create a Pro or Elite API key. Send Authorization: Bearer <Y2_API_KEY> from your trusted agent runtime.
For x402, omit Authorization and read the HTTP 402 payment challenge before signing a retry. Public browser tools do not make payments.