CVE-2026-100157
WP Ultimate Review <= 2.4.3 - Unauthenticated Arbitrary Shortcode Execution via 'xs_reviw_summery' Parameter (Split-Shortcode / Late-Registered Shortcode)
- Published
- Updated
- Reserved
- Assigned by
- Wordfence
Description
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 unauthenticated attackers to execute arbitrary shortcodes. The nonce required to pass the only gate is emitted to unauthenticated visitors via the public review form, and submitted shortcode payloads are auto-published without admin approval by default, meaning exploitation requires no account and no privileged interaction.
Timeline
ID reserved
By Wordfence
- 8 days later
· 8 days later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| WordfenceCNA (assigner) | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
| NVDNVD · Deferred | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.28% · top 79% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Weakness
Affected products
- affected ≤ 2.4.3
References (6)
- https://www.wordfence.com/threat-intel/vulnerabilities/id/ee3690d9-d1c3-4653-948b-cba1a7653574?source=cve (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/wp-ultimate-review/tags/2.4.3/app/content.php#L347 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/wp-ultimate-review/tags/2.4.3/app/content.php#L217 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/wp-ultimate-review/tags/2.4.3/app/content.php#L52 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/wp-ultimate-review/tags/2.4.3/init.php#L286 (opens in a new tab)
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3720426%40wp-ultimate-review&new=3720426%40wp-ultimate-review (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-100157)Record last updated .