Vulnerability record · CVE-2026-29038 · published 6 March 2026

CVE-2026-29038: Webtechnologies changedetection cross-site scripting vulnerability

Webtechnologies · Changedetection

changedetection.io is a free open source web page change detection tool. Prior to version 0.54.4, there is a reflected cross-site scripting (XSS) vulnerability identified in the /rss/tag/ endpoint of changedetection.io. The tag_uuid path parameter is reflected directly in the HTTP response body without HTML escaping. Since Flask returns text/html by default for plain string responses, the browser parses and executes injected JavaScript. This issue has been patched in version 0.54.4.

6.1 CVSS 3.1 Medium EPSS 0.34% · top 75.4% CWE-79 · Cross-site scripting

6.1CVSS 3.1 base score

0.34%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

3References, 1 tagged exploit

17 Jun 2026Last modified by NVD

Description

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Changedetection Webtechnologies

References

Link	Tags
https://github.com/dgtlmoon/changedetection.io/commit/ec7d56f85d1e9690fca7cb4711c1fb20dffec780	Patch
https://github.com/dgtlmoon/changedetection.io/releases/tag/0.54.4	ProductRelease Notes
https://github.com/dgtlmoon/changedetection.io/security/advisories/GHSA-8whx-v8qq-pq64	ExploitMitigationVendor Advisory

Track CVE-2026-29038 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2026-35490Webtechnologies changedetection incorrect authorization vulnerabilitychangedetection.io is a free open source web page change detection tool. Prior to 0.54.8, the @login_optionally_required decorator is placed before (…EPSS 0.64%7 Apr 2026 8.8CVE-2026-29065Webtechnologies changedetection path traversal vulnerabilitychangedetection.io is a free open source web page change detection tool. Prior to version 0.54.4, a Zip Slip vulnerability in the backup restore func…EPSS 0.56%6 Mar 2026 8.8CVE-2026-29039Webtechnologies changedetection code injection vulnerabilitychangedetection.io is a free open source web page change detection tool. Prior to version 0.54.4, the changedetection.io application allows users to …EPSS 0.51%6 Mar 2026 8.6CVE-2026-27696Webtechnologies changedetection server-side request forgery (ssrf) vulnerabilitychangedetection.io is a free open source web page change detection tool. In versions prior to 0.54.1, changedetection.io is vulnerable to Server-Side…EPSS 0.48%25 Feb 2026 8.3CVE-2026-33981Webtechnologies changedetection information exposure vulnerabilitychangedetection.io is a free open source web page change detection tool. Prior to 0.54.7, the `jq:` and `jqraw:` include filter expressions allow use…EPSS 0.48%27 Mar 2026 8.2CVE-2026-41895Webtechnologies changedetection xml external entity (xxe) vulnerabilitychangedetection.io is a free open source web page change detection tool. In 0.54.9 and earlier, xpath_filter() switches to XML mode for XML/RSS conte…EPSS 0.37%12 May 2026 7.5CVE-2026-43891Webtechnologies changedetection vulnerabilitychangedetection.io is a free open source web page change detection tool. Prior to 0.55.1, the vulnerability is caused by trusting attacker-controlled…EPSS 0.50%12 May 2026 7.1CVE-2026-35000Webtechnologies changedetection vulnerabilityChangeDetection.io versions prior to 0.54.7 contain a protection bypass vulnerability in the SafeXPath3Parser implementation that allows attackers to…EPSS 0.47%1 Apr 2026

Source: NIST National Vulnerability Database (record CVE-2026-29038), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.