CVE-2021-47929

5.1 mediumEPSS 0.2%

Medium (5.1). EPSS 0.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

5.1 medium

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

CVSS 3.1

6.4 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 9% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2026-05-10
Modified: 2026-07-25
Record from: the NVD, synced 2026-10-19

References

http://www.filterable-portfolio.com/
https://wordpress.org/plugins/fg-gallery/
https://www.exploit-db.com/exploits/50458
https://www.vulncheck.com/advisories/wordpress-plugin-filterable-portfolio-gallery-stored-xss

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