Vulnerability · Published Aug 12, 2026 · Assigned by GitHub_M

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

Medium 5.4

In plain English

A medium-severity cross-site scripting in prowler from prowler-cloud. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.3%top 77.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
PyPI	prowler	5.37.0	GHSA-c2jg-2778-ggm4
PyPI	prowler	5.37.0	PYSEC-2026-3907
PyPI	prowler-cloud	5.37.0	GHSA-c2jg-2778-ggm4
PyPI	prowler-cloud	5.37.0	PYSEC-2026-3908

Affected products (as reported)

Vendor	Product	Versions
prowler-cloud	prowler	< 5.37.0

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

References

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