CVE-2021-24525: getshortcodes shortcodes_ultimate Cross-site Scripting
Vulnerability summary
CVE-2021-24525 is a medium (CVSS 5.4) Cross-site Scripting vulnerability in getshortcodes shortcodes_ultimate. EPSS estimates a 0.62% chance of exploitation in the next 30 days, higher than 48.9% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 20-09-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
The Shortcodes Ultimate WordPress plugin before 5.10.2 allows users with Contributor roles to perform stored XSS via shortcode attributes. Note: the plugin is inconsistent in its handling of shortcode attributes; some do escape, most don't, and there are even some attributes that are insecure by design (like [su_button]'s onclick attribute).
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
0.62%
Chance of exploitation in the next 30 days
Percentile
49%
Versus all other CVEs
30-day change
0.00 pp
From 0.62% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (wpscan.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Getshortcodes1 product
- shortcodes_ultimate< 5.10.2
Unknown1 product
- wordpress shortcodes plugin — shortcodes ultimate≥ 5.10.2, < 5.10.2
Wordpress1 product
- shortcodes-ultimate< 5.10.2
3 vendors · 3 products
References
2 links- wpscan.com/vulnerability/7f5659bd-50c3-4725-95f4-cf88812acf1cX Refsource MISCExploitThird Party Advisory