XSS in Filterable-Portfolio Filterable Portfolio Gallery
CVE-2021-47929
Filterable Portfolio Gallery 1.0 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious JavaScript by entering payloads in the title field. Attackers can store JavaScript code like image tags with onerror handlers that execute when the gallery is previewed, affecting all users viewing the page.
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 (8.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 8.0% 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
- Filterable-Portfolio Filterable Portfolio Gallery — versions 1.0
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/50458 (exploit)
- www.filterable-portfolio.com/ (product)
- wordpress.org/plugins/fg-gallery/ (product)
- www.vulncheck.com/advisories/wordpress-plugin-filterable-portfolio-gallery-stor… (third-party-advisory)
Frequently asked questions
- What is CVE-2021-47929?
- CVE-2021-47929 is a medium-severity vulnerability in Filterable-Portfolio Filterable Portfolio Gallery, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-05-10.
- How severe is CVE-2021-47929?
- Medium severity. CVSS v3 base score is 6.4 out of 10.