go-vikunja up to 1.x Projects 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 classified as problematic was found in go-vikunja vikunja up to 1.x. This affects an unknown function of the component Projects Module. Executing a manipulation can lead to cross site scripting. This vulnerability is tracked as CVE-2026-27116. The attack can be launched remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in go-vikunja vikunja up to 1.x and classified as problematic. This vulnerability affects an unknown function of the component Projects Module. 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. CVE summarizes:

Vikunja is an open-source self-hosted task management platform. Prior to version 2.0.0, a reflected HTML injection vulnerability exists in the Projects module where the `filter` URL parameter is rendered into the DOM without output encoding when the user clicks "Filter." While `<script>` and `<iframe>` are blocked, `<svg>`, `<a>`, and formatting tags (`<h1>`, `<b>`, `<u>`) render without restriction — enabling SVG-based phishing buttons, external redirect links, and content spoofing within the trusted application origin. Version 2.0.0 fixes this issue.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-27116 since 02/17/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 2.0.0 eliminates this vulnerability. The upgrade is hosted for download at vikunja.io.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

Version

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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: vikunja 2.0.0

Timelineinfo

02/17/2026 CVE reserved
02/26/2026 +9 days Advisory disclosed
02/26/2026 +0 days VulDB entry created
03/06/2026 +8 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-4qgr-4h56-8895
Status: Confirmed

CVE: CVE-2026-27116 (🔒)
GCVE (CVE): GCVE-0-2026-27116
GCVE (VulDB): GCVE-100-347872

Entryinfo

Created: 02/26/2026 01:22
Updated: 03/06/2026 12:03
Changes: 02/26/2026 01:22 (66), 03/01/2026 06:07 (1), 03/06/2026 12:03 (1)
Complete: 🔍
Cache ID: 216::103

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