Answer in brief
CVE-2026-100157 records a Medium severity (CVSS 6.5) vulnerability in WP Ultimate Review <= 2.4.3 - Unauthenticated Arbitrary Shortcode Execution via 'xs_reviw_summery' Parameter (Split-Shortcode / Late-Registered Shortcode). The current sources do not mark it as known exploited. The current feed maps roxnor/WP Ultimate Review (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps roxnor/WP Ultimate Review (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| roxnor/WP Ultimate Reviewgeneric | >=0 <=2.4.3 | Not reported |
Published upstream
Oct 3, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 3, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 3, 2026
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.
Quoted source text, attributed separately from HOL analysis.