XSS in WordPress
CVE-2020-11029
In affected versions of WordPress, a vulnerability in the stats() method of class-wp-object-cache.php can be exploited to execute cross-site scripting (XSS) attacks. This has been patched in version 5.4.1, along with all the previously affected versions via a minor release (5.3.3, 5.2.6, 5.1.5, 5.0.9, 4.9.14, 4.8.13, 4.7.17, 4.6.18, 4.5.21, 4.4.22, 4.3.23, 4.2.27, 4.1.30, 4.0.30, 3.9.31, 3.8.33, 3.7.33).
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.021 (81.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 81.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: 0.000
Affected products
- WordPress — versions >= 4.2.0, < 4.2.27, >= 5.3.0, < 5.3.3, >= 3.8.0, < 3.8.33
- Debian Linux — versions 8.0, 9.0, 10.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- wordpress.org/support/wordpress-version/version-5-4-1/ (Release Notes, Vendor Advisory)
- github.com/WordPress/wordpress-develop/security/advisories/GHSA-568w-8m88-8g2c (Third Party Advisory)
- www.debian.org/security/2020/dsa-4677 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2020/05/msg00011.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-11029?
- CVE-2020-11029 is a medium-severity vulnerability in WordPress, classified under Cross-site Scripting. CVSS score: 5.8/10. Published 2020-04-30.
- How severe is CVE-2020-11029?
- Medium severity. CVSS v3 base score is 5.8 out of 10.
- Is CVE-2020-11029 known to be exploited?
- 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.