CVE-2023-5631 (GCVE-0-2023-5631)

Vulnerability from cvelistv5 – Published: 2023-10-18 14:51 – Updated: 2025-10-21 23:05
VLAI CISA Previdian
Title
Stored XSS vulnerability in Roundcube
Summary
Roundcube 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.
Severity
6.1 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
SSVC
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2023-11-15 16:39 UTC
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
ESET CNA under the ENISA root
CNA scorecard – unranked: 8 records in the last 180 days, 10 needed details
References
Impacted products
Vendor Product Version CPE status
Roundcube Roundcubemail Affected: 1.6.0 , < 1.6.3 (semver)
Affected: 1.5.0 , < 1.5.4 (semver)
Affected: 1.4.0 , < 1.5.14 (semver)
Unaffected: 1.6.4
Unaffected: 1.5.5
Unaffected: 1.5.15
guessed Create a notification for this product.
Credits
Matthieu Faou Denys Klymenko Aleksander Machniak
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 27269dd8-2616-4f5a-acda-a915460a9e1e

Vulnerability ID: CVE-2023-5631

Status: Confirmed

Status Updated: 2023-10-26 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2023-10-26
Asserted: 2023-10-26
Scope
Notes: Roundcube Webmail Persistent Cross-Site Scripting (XSS) Vulnerability | Affected: Roundcube / Webmail | Description: Roundcube Webmail contains a persistent cross-site scripting (XSS) vulnerability that allows a remote attacker to run malicious JavaScript code. | Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. | Due date: 2023-11-16 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://roundcube.net/news/2023/10/16/security-update-1.6.4-released, https://roundcube.net/news/2023/10/16/security-updates-1.5.5-and-1.4.15 ; https://nvd.nist.gov/vuln/detail/CVE-2023-5631
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-79
Feed CISA Known Exploited Vulnerabilities Catalog
Product Webmail
Due Date 2023-11-16
Date Added 2023-10-26
Vendorproject Roundcube
Vulnerabilityname Roundcube Webmail Persistent Cross-Site Scripting (XSS) Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-02-02 13:24 UTC | Updated: 2026-11-04 13:02 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 719139fa-222a-499f-ad94-3ad84910b2b7

Vulnerability ID: CVE-2023-5631

Status: Confirmed

Status Updated: 2023-10-26 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2023-10-26
Asserted: 2023-10-26
Scope
Notes: KEVIntel entry: Stored XSS vulnerability in Roundcube | Affected: Roundcube / Roundcubemail | CVSS: 6.1 (MEDIUM) | Used in malware: unknown | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title Stored XSS vulnerability in Roundcube
Vendor Roundcube
Product Roundcubemail
Added Date 2023-10-26T00:00:00.000Z
Cvss Score 6.1
Epss Score None
Cvss Severity MEDIUM
Epss Percentile None
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False
References
Created: 2026-06-23 11:14 UTC | Updated: 2026-06-23 11:14 UTC
Show details on NVD website
To clipboard 

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}



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