CVE-2021-24211: WordPress Related Posts <= 3.6.4 - Authenticated Stored Cross-Site Scripting (XSS)
Vulnerability summary
CVE-2021-24211 is a medium (CVSS 5.4) Cross-site Scripting vulnerability in sovrn wordpress_related_posts. EPSS estimates a 0.63% chance of exploitation in the next 30 days, higher than 49.4% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 05-04-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
The WordPress Related Posts plugin through 3.6.4 contains an authenticated (admin+) stored XSS vulnerability in the title field on the settings page. By exploiting that an attacker will be able to execute JavaScript code in the user's browser.
CVSS metrics
3 scores · 2 sources · 2 versions- wordfenceSource5.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS trend
Probability
0.63%
Chance of exploitation in the next 30 days
Percentile
49%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.63% on 22-09-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
1 foundExploit Reference (wpscan.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Sovrn1 product
- wordpress_related_posts≤ 3.6.4
Unknown1 product
Wordpress1 product
- wordpress-23-related-posts-plugin≤ 3.6.4
3 vendors · 3 products
References
2 links- wpscan.com/vulnerability/37e0a033-3dee-476d-ae86-68354e8f0b1cX Refsource CONFIRMExploitThird Party Advisory