Answer in brief
CVE-2026-125389 records a Medium severity (CVSS 5.3) vulnerability in Group-Office before 6.8.181, 25.0.116, and 26.0.58 Stored XSS via filterXSS Bypass. The current sources do not mark it as known exploited. The current feed maps Intermesh/Group-Office (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Intermesh/Group-Office (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Intermesh/Group-Officegeneric | >=0 <6.8.181 || >=25.0.0 <25.0.116 || >=26.0.0 <26.0.58 | 6.8.181, 25.0.116, 26.0.58 |
Published upstream
Nov 9, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 9, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 9, 2026
Intermesh Group-Office before 6.8.181, 25.0.116, and 26.0.58 contains a stored cross-site scripting vulnerability in the email viewer due to a flawed regex in StringHelper::filterXSS. Remote attackers can send emails containing tags like svg/onload, which MessagePanel.js renders raw, executing script in the recipient's session when opened.
Quoted source text, attributed separately from HOL analysis.