Answer in brief
CVE-2023-5631 records a High severity vulnerability in Stored XSS vulnerability in Roundcube. The current sources mark it as known exploited. The current feed maps Roundcube/Roundcubemail (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2023-5631 records a High severity vulnerability in Stored XSS vulnerability in Roundcube. The current sources mark it as known exploited. The current feed maps Roundcube/Roundcubemail (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. Known-exploitation status makes exposure review time-sensitive. 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 Roundcube/Roundcubemail (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Roundcube/Roundcubemailgeneric | >=1.6.0 <1.6.3 || >=1.5.0 <1.5.4 || >=1.4.0 <1.5.14 | 1.6.3, 1.5.4, 1.5.14 |
Published upstream
Oct 18, 2023
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2025
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
May 24, 2026
Added to CISA KEV
Oct 26, 2023
Evidence: source:kev:kev:kev:recordRoundcube before 1.4.15, 1.5.x before 1.5.5, and 1.6.x before 1.6.4 allows stored XSS via an HTML e-mail message with a crafted SVG document because of program/lib/Roundcube/rcube_washtml.php behavior. This could allow a remote attacker to load arbitrary JavaScript code.
Quoted source text, attributed separately from HOL analysis.
A CVSS score is not reported in the current record. Known-exploitation status makes exposure review time-sensitive. 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 Roundcube/Roundcubemail (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Roundcube/Roundcubemailgeneric | >=1.6.0 <1.6.3 || >=1.5.0 <1.5.4 || >=1.4.0 <1.5.14 | 1.6.3, 1.5.4, 1.5.14 |
Published upstream
Oct 18, 2023
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2025
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
May 24, 2026
Added to CISA KEV
Oct 26, 2023
Evidence: source:kev:kev:kev:recordRoundcube before 1.4.15, 1.5.x before 1.5.5, and 1.6.x before 1.6.4 allows stored XSS via an HTML e-mail message with a crafted SVG document because of program/lib/Roundcube/rcube_washtml.php behavior. This could allow a remote attacker to load arbitrary JavaScript code.
Quoted source text, attributed separately from HOL analysis.