dgtlmoon changedetection.io up to 0.54.3 HTTP Response /rss/tag/ cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in dgtlmoon changedetection.io up to 0.54.3. This affects an unknown function of the file /rss/tag/ of the component HTTP Response Handler. This manipulation causes cross site scripting. This vulnerability appears as CVE-2026-29038. The attack may be initiated remotely. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in dgtlmoon changedetection.io up to 0.54.3. It has been declared as problematic. Affected by this vulnerability is an unknown code of the file /rss/tag/ of the component HTTP Response Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-29038 since 03/03/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

Upgrading to version 0.54.4 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch ec7d56f85d1e9690fca7cb4711c1fb20dffec780 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.1
CNA Vector (GitHub_M): 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: changedetection.io 0.54.4
Patch: ec7d56f85d1e9690fca7cb4711c1fb20dffec780

Timelineinfo

03/03/2026 CVE reserved
03/06/2026 +3 days Advisory disclosed
03/06/2026 +0 days VulDB entry created
03/12/2026 +6 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-8whx-v8qq-pq64
Status: Confirmed

CVE: CVE-2026-29038 (🔒)
GCVE (CVE): GCVE-0-2026-29038
GCVE (VulDB): GCVE-100-349423

Entryinfo

Created: 03/06/2026 08:43
Updated: 03/12/2026 01:40
Changes: 03/06/2026 08:43 (69), 03/12/2026 01:40 (1)
Complete: 🔍
Cache ID: 216::103

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