CVE-2026-32273 | Discourse up to 2026.1.2/2026.2.1 Description cross site scripting

VDB-354480 · CVE-2026-32273 · GCVE-0-2026-32273 Discourse up to 2026.1.2/2026.2.1 Description cross site scripting History Diff relate json xml CTI CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system. Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack. CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability. 4.4 $0-$5k 2.63+ Summary info A vulnerability classified as problematic was found in Discourse up to 2026.1.2/2026.2.1 . Impacted is an unknown function of the component Description Handler . The manipulation results in cross site scripting. This vulnerability is known as CVE-2026-32273 . It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is advised. Details info A vulnerability was found in Discourse up to 2026.1.2/2026.2.1 . It has been classified as problematic. Affected is an unknown function of the component Description Handler . The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity. CVE summarizes: Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.3, 2026.2.0-latest to before 2026.2.2, and 2026.3.0-latest to before 2026.3.0, updating a category description via API is not sanitizing the description string, which can lead to XSS attacks. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0. The advisory is shared for download at github.com . This vulnerability is traded as CVE-2026-32273 since 03/11/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. 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 2026.1.3, 2026.2.2 or 2026.3.0 eliminates this vulnerability. Similar entries are available at VDB-191551 , VDB-196721 , VDB-199288 and VDB-201669 . Product info Type Chat Software Name Discourse Version 2026.1.0 2026.1.1 2026.1.2 2026.2.0 2026.2.1 License open-source Website Product: https://github.com/discourse/discourse/ CPE 2.3 info 🔒 🔒 🔒 CPE 2.2 info 🔒 🔒 🔒 CVSSv4 info VulDB Vector : 🔒 VulDB Reliability : 🔍 CVSSv3 info VulDB Meta Base Score : 4.4 VulDB Meta Temp Score : 4.4 VulDB Base Score : 3.5 VulDB Temp Score : 3.4 VulDB Vector : 🔒 VulDB Reliability : 🔍 CNA Base Score : 5.4 CNA Vector (GitHub_M) : 🔒 CVSSv2 info AV AC Au C I A 💳 💳 💳 💳 💳 💳 💳 💳 💳 💳 💳 💳 💳 💳 💳 💳 💳 💳 Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score : 🔒 VulDB Temp Score : 🔒 VulDB Reliability : 🔍 Exploiting info Class : Cross site scripting CWE : CWE-79 / CWE-94 / CWE-74 CAPEC : 🔒 ATT&CK : 🔒 Physical : No Local : No Remote : Yes Availability : 🔒 Status : Not defined Price Prediction : 🔍 Current Price Estimation : 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligence info Interest : 🔍 Active Actors : 🔍 Active APT Groups : 🔍 Countermeasures info Recommended : Upgrade Status : 🔍 0-Day Time : 🔒 Upgrade : Discourse 2026.1.3/2026.2.2/2026.3.0 Timeline info 03/11/2026 CVE reserved 03/31/2026 +19 days Advisory disclosed 03/31/2026 +0 days VulDB entry created 03/31/2026 +0 days VulDB entry last update Sources info Product : github.com Advisory : github.com Status : Confirmed CVE : CVE-2026-32273 ( 🔒 ) GCVE (CVE) : GCVE-0-2026-32273 GCVE (VulDB) : GCVE-100-354480 See also : 🔒 Entry info Created : 03/31/2026 08:10 PM Changes : 03/31/2026 08:10 PM (64) Complete : 🔍 Cache ID : 99:084:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ Previous Overview Next ▸ Want to stay up to date on a daily basis? Enable the mail alert feature now!