CVE-2026-73262Public exploitNetwork attack vectorHinoki check available

Stored XSS via unescaped cloud resource tags

Published Aug 12, 2026 · Updated Aug 12, 2026

Stored XSS in Prowler before 5.37.0 allows remote authenticated users to execute JavaScript through crafted cloud resource tags. The HTML output formatter in prowler/lib/outputs/html/html.py passes finding.resource_tags through unroll_dict and parse_html_string without escaping active markup. Exploitation requires permission to modify a scanned resource tag and a victim to open the generated report, exposing or altering report-page content.

CVSS severity5.4
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Stored XSS in Prowler before 5.37.0 allows remote authenticated users to execute JavaScript through crafted cloud resource tags. The HTML output formatter in prowler/lib/outputs/html/html.py passes finding.resource_tags through unroll_dict and parse_html_string without escaping active markup. Exploitation requires permission to modify a scanned resource tag and a victim to open the generated report, exposing or altering report-page content.

The record

CVE
CVE-2026-73262
Published
Aug 12, 2026
Updated
Aug 12, 2026
Vendor
Prowler
Product
Prowler
Classifications
CWE-79, T1059.007, T1204.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 5.37.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Prowler · Prowlerversion=< 5.37.0

Published CVSS scores

5.4GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript/JScript
T1204.002User Execution: Malicious File

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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