Actively Exploited — CISA KEV
CVE-2025-68461: Roundcube Webmail High-Severity Vulnerability
Severity: High | CVSS 3.1: 7.2 | Published: 2025-12-18 | KEV Added: 2026-02-20
What is CVE-2025-68461?
Roundcube Webmail before 1.5.12 and 1.6 before 1.6.12 is prone to a Cross-Site-Scripting (XSS) vulnerability via the animate tag in an SVG document.
Technical Analysis
Weakness Classification
This vulnerability is classified as CWE-79 — Cross-site Scripting (XSS). Malicious scripts can be injected into web pages viewed by other users, enabling session hijacking, credential theft, or defacement.
Attack Vector Breakdown
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Changed
- Confidentiality: Low
- Integrity: Low
- Availability: None
Impact Analysis
This vulnerability is exploitable over the network, meaning any system reachable via the internet or internal network is potentially at risk without physical access. The attack complexity is low, requires no special privileges, and needs no user interaction — making it straightforward to exploit at scale. Notably, the vulnerability's scope is changed, meaning exploitation can affect resources beyond the vulnerable component — for example, escaping a sandbox or container to impact the host system. Malicious scripts can be injected into web pages viewed by other users, enabling session hijacking, credential theft, or defacement.
Exploitation Probability (EPSS): 6.9% chance of exploitation in the next 30 days (92th percentile). While the base probability may appear low, inclusion in CISA KEV confirms real-world exploitation is already occurring.
Exploit Availability
Public exploit code or proof-of-concept is available for CVE-2025-68461. This significantly increases the risk of exploitation, as attackers can use or adapt existing exploit code rather than developing their own. A public exploit reference has been identified. Organizations should treat this as an urgent patching priority.
Is CVE-2025-68461 being exploited?
Yes. CVE-2025-68461 is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, restricted to CVEs with confirmed active exploitation in the wild. CISA added this vulnerability on 2026-02-20. Inclusion in KEV triggers the patching mandate under BOD 22-01 for U.S. federal civilian agencies, with a remediation deadline of 2026-03-13. Additionally, public exploit code is available, which lowers the barrier for attackers.
How to fix CVE-2025-68461
Apply the security update issued by Roundcube for Webmail. If an immediate patch is not possible, consult the vendor advisory for mitigation guidance, restrict network exposure of the affected service, and monitor logs for indicators of exploitation. CISA's Known Exploited Vulnerabilities catalog requires U.S. federal agencies to remediate this vulnerability by the due date shown below under Binding Operational Directive 22-01. Private organizations should treat KEV entries as priority-one patches because active exploitation has been confirmed in the wild.
Related Vulnerabilities
Other actively exploited vulnerabilities affecting Webmail or sharing the same weakness (CWE-79):
- CVE-2025-49113 (Critical 9.9) [same product] — Roundcube Webmail before 1.5.10 and 1.6.x before 1.6.11 allows remote code…
- CVE-2024-42009 (Unknown N/A) [same product] — RoundCube Webmail contains a cross-site scripting vulnerability. This…
- CVE-2026-42897 (High 8.1) [same CWE] — Improper neutralization of input during web page generation ('cross-site…
- CVE-2025-48700 (Medium 6.1) [same CWE] — An issue was discovered in Zimbra Collaboration (ZCS) 8.8.15 and 9.0 and 10.0…
- CVE-2025-66376 (High 7.2) [same CWE] — Zimbra Collaboration (ZCS) 10 before 10.0.18 and 10.1 before 10.1.13 allows…
Frequently asked questions
Is CVE-2025-68461 critical?
CVE-2025-68461 has a CVSS 3.1 base score of 7.2 — High severity. It should be treated as a priority patch, especially given the active exploitation confirmed by CISA. The availability of public exploit code further increases the urgency.
Is CVE-2025-68461 being actively exploited?
Yes — CISA added CVE-2025-68461 to the Known Exploited Vulnerabilities catalog on 2026-02-20. Inclusion in KEV means CISA has confirmed in-the-wild exploitation. Public exploit code has also been identified, making exploitation accessible to a broader range of threat actors.
How do I patch CVE-2025-68461?
Apply the security update from Roundcube for Webmail. Federal agencies must remediate by 2026-03-13 under BOD 22-01.
What type of vulnerability is CVE-2025-68461?
CVE-2025-68461 is classified under CWE-79 (Cross-site Scripting (XSS)). Malicious scripts can be injected into web pages viewed by other users, enabling session hijacking, credential theft, or defacement.
What is the CVSS score for CVE-2025-68461?
CVE-2025-68461 has a CVSS 3.1 base score of 7.2, classifying it as High severity. The attack vector is Network, attack complexity is Low, and no privileges are required.