WP Latest Posts <= 5.0.11 - Authenticated (Author+) Stored Cross-Site Scripting via Post Content Image src Attribute
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The WP Latest Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via crafted image src attributes in post content in versions up to, and including, 5.0.11. This is due to insufficient output escaping in the field() and loop() functions, which extract the raw src attribute value from <img> tags within post_content using a regular expression and then reconstruct new <img> elements or CSS background-image declarations by directly concatenating the unescaped value — bypassing WordPress's kses filtering entirely. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| JoomUnited | WP Latest Posts | up to 5.0.11 | — | No fix listed | CNA |
- WP Latest Posts VendorJoomUnited Affected up to 5.0.11 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-9620
- 2026-10-03 Alias added: GHSA-4mxp-2cfv-x3f6
References
Other 4
- https://www.wordfence.com/threat-intel/vulnerabilities/id/e00f69d6-df33-4179-843b-98f8ed034e4a?source=cve
- https://plugins.trac.wordpress.org/browser/wp-latest-posts/tags/5.0.11/inc/wplp-front.inc.php#L2738
- https://plugins.trac.wordpress.org/browser/wp-latest-posts/tags/5.0.11/inc/wplp-front.inc.php#L2284
- https://plugins.trac.wordpress.org/browser/wp-latest-posts/tags/5.0.11/inc/wplp-front.inc.php#L2326
More JoomUnited vulnerabilities
- TI-2023-01305 WP Meta SEO < 4.5.5 - Author+ PHAR Deserialization CVSS 3.1HIGH 8.8
- TI-2023-00830 WP Meta SEO < 4.5.3 - Subscriber+ SQLi CVSS 3.1HIGH 8.8
- TI-2025-04513 WP File Download < 6.2.6 - Reflected XSS CVSS 3.1HIGH 7.1
- TI-2023-00831 WP Meta SEO < 4.5.3 - Subscriber+ Improper Authorization causing Arbitrary Redirect CVSS 3.1MEDIUM 6.1
- TI-2024-17009 WordPress WP Media folder Plugin <= 5.7.2 is vulnerable to Arbitrary File Upload CVSS 3.1CRITICAL 9.9
- TI-2026-08493 WordPress WP Media folder Addon plugin <= 4.0.1 - Arbitrary File Download vulnerability CVSS 3.1HIGH 7.5
Sources
- CVE-2026-9620 · CVE Program
- CVE-2026-9620 · NVD
- FIRST EPSS
- GHSA-4mxp-2cfv-x3f6 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences