CVE-2026-103519 json
WP Ultimate Review <= 2.4.3 - Authenticated (Subscriber+) Arbitrary Shortcode Execution via 'xs_reviw_summery' Parameter
published 2026-10-03 36 d ago modified 2026-10-06 33 d ago also EUVD-2026-91959
- cvss
- 5.4
- 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 17%
- public exploits
- 0
- none known
Summary
The The WP Ultimate Review plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 2.4.3. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for authenticated attackers, with subscriber-level access and above, to execute arbitrary shortcodes. The bypass relies on WordPress's own strip_shortcodes() function unwrapping the [[tag]] double-bracket escape to a bare [tag] that survives wp_insert_post storage and fires when the publicly queryable xs_review post type is rendered through the_content.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 36 d ago
Exploit prediction
0.26% chance of exploitation in the next 30 days, higher than 17% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
Affected products
- roxnor WP Ultimate Review
Classification
- Weakness
-
- CWE-94 Improper Control of Generation of Code
References
- wordfence.com /threat-intel/vulnerabilities/id/76986a3a-67f8-4d91-9f48-88fad356c3b4?source=cve
- plugins.trac.wordpress.org /browser/wp-ultimate-review/tags/2.4.3/app/content.php#L347
- plugins.trac.wordpress.org /browser/wp-ultimate-review/tags/2.4.3/app/content.php#L366
- plugins.trac.wordpress.org /browser/wp-ultimate-review/tags/2.4.3/init.php#L291
- plugins.trac.wordpress.org /browser/wp-ultimate-review/tags/2.4.3/app/content.php#L217
- plugins.trac.wordpress.org /changeset?reponame=&old=3720426%40wp-ultimate-review&new=3720426%40wp-ultimate-review
Sources
- CVE List CVE-2026-103519
- NVD CVE-2026-103519
Fencer Vulns 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.