CVE-2026-35166 | gohugoio hugo up to 0.159.1 Link cross site scripting (GHSA-mcv8-8m8x-48pg)

VDB-355633 · CVE-2026-35166 · GHSA-MCV8-8M8X-48PG GOHUGOIO HUGO UP TO 0.159.1 LINK CROSS SITE SCRIPTING HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.1 $0-$5k 0.71+ Summaryinfo A vulnerability was found in gohugoio hugo up to 0.159.1. It has been classified as problematic. This vulnerability affects unknown code of the component Link Handler. This manipulation causes cross site scripting. This vulnerability appears as CVE-2026-35166. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended. Detailsinfo A vulnerability was found in gohugoio hugo up to 0.159.1. It has been declared as problematic. Affected by this vulnerability is an unknown code block of the component Link 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: Hugo is a static site generator. From 0.60.0 to before 0.159.2, links and image links in the default markdown to HTML renderer are not properly escaped. Hugo users who trust their Markdown content or have custom render hooks for links and images are not affected. This vulnerability is fixed in 0.159.2. The advisory is shared at github.com. This vulnerability is known as CVE-2026-35166 since 04/01/2026. 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. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue. Upgrading to version 0.159.2 eliminates this vulnerability. Productinfo Vendor gohugoio Name hugo Version 0.159.0 0.159.1 Website Product: https://github.com/gohugoio/hugo/ CPE 2.3info 🔒 🔒 CPE 2.2info 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 4.3 VulDB Meta Temp Score: 4.1 VulDB Base Score: 4.3 VulDB Temp Score: 4.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info 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: 🔍 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 Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: hugo 0.159.2 Timelineinfo 04/01/2026 CVE reserved 04/06/2026 +5 days Advisory disclosed 04/06/2026 +0 days VulDB entry created 04/06/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: GHSA-mcv8-8m8x-48pg Status: Confirmed CVE: CVE-2026-35166 (🔒) GCVE (CVE): GCVE-0-2026-35166 GCVE (VulDB): GCVE-100-355633 Entryinfo Created: 04/06/2026 21:23 Changes: 04/06/2026 21:23 (68) Complete: 🔍 Cache ID: 99:205:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸