XSS in Picture-Gallery Picture Gallery
CVE-2021-47951
WordPress Picture Gallery 1.4.2 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts through the Edit Content URL field in the Access Control settings. Attackers can enter JavaScript payloads in the plugin options that are stored in the database and executed when the functionality is triggered, enabling session hijacking or credential theft.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (7.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 7.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Picture-Gallery Picture Gallery — versions 1.4.2
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/50187 (exploit)
- wordpress.org/plugins/picture-gallery/ (product)
- www.vulncheck.com/advisories/wordpress-picture-gallery-stored-xss-via-edit-cont… (third-party-advisory)
Frequently asked questions
- What is CVE-2021-47951?
- CVE-2021-47951 is a medium-severity vulnerability in Picture-Gallery Picture Gallery, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-05-10.
- How severe is CVE-2021-47951?
- Medium severity. CVSS v3 base score is 6.4 out of 10.