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CVE-2026-29038— changedetection.io: Reflected XSS in RSS Tag Error Response

Quick assessment

Affected
dgtlmoon changedetection.io
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

changedetection.io是dgtlmoon个人开发者的一个网站变更检测、监控和通知应用程序。 changedetection.io 0.54.4之前版本存在跨站脚本漏洞，该漏洞源于/rss/tag/端点中的tag_uuid路径参数未经HTML转义直接反射到HTTP响应体中，可能导致反射型跨站脚本攻击。

CVSS 6.1 · Medium EPSS 0.35% · P27
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I. Basic Information for CVE-2026-29038

Vulnerability Information
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Vulnerability Title
changedetection.io: Reflected XSS in RSS Tag Error Response
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
changedetection.io 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
changedetection.io是dgtlmoon个人开发者的一个网站变更检测、监控和通知应用程序。 changedetection.io 0.54.4之前版本存在跨站脚本漏洞，该漏洞源于/rss/tag/端点中的tag_uuid路径参数未经HTML转义直接反射到HTTP响应体中，可能导致反射型跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
dgtlmoon changedetection.io < 0.54.4 -

II. Public POCs for CVE-2026-29038

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III. Intelligence Information for CVE-2026-29038

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Patches & Fixes for CVE-2026-29038 (1)

Vendor Advisories for CVE-2026-29038 (1)

Vendor Pages for CVE-2026-29038 (1)

Same Patch Batch · dgtlmoon · 2026-03-06 · 3 CVEs total

CVE-2026-29065 changedetection.io: Zip Slip vulnerability in the backup restore functionality
CVE-2026-29039 changedetection.io: XPath - Arbitrary File Read via unparsed-text()

IV. Related Vulnerabilities

Same product: changedetection.io
Same vendor: dgtlmoon
Same weakness: CWE-79

V. Comments for CVE-2026-29038

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