CVE-2026-35545 | Roundcube Webmail up to 1.5.14/1.6.14 SVG Content resource transfer

VDB-355059 · CVE-2026-35545 · GCVE-0-2026-35545 ROUNDCUBE WEBMAIL UP TO 1.5.14/1.6.14 SVG CONTENT RESOURCE TRANSFER HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.2 $0-$5k 0.99 Summaryinfo A vulnerability was found in Roundcube Webmail up to 1.5.14/1.6.14. It has been classified as problematic. Affected by this issue is some unknown functionality of the component SVG Content Handler. Performing a manipulation results in resource transfer. This vulnerability is cataloged as CVE-2026-35545. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is recommended. Detailsinfo A vulnerability classified as problematic has been found in Roundcube Webmail up to 1.5.14/1.6.14. This affects an unknown code block of the component SVG Content Handler. The manipulation with an unknown input leads to a resource transfer vulnerability. CWE is classifying the issue as CWE-669. The product does not properly transfer a resource/behavior to another sphere, or improperly imports a resource/behavior from another sphere, in a manner that provides unintended control over that resource. This is going to have an impact on integrity. The summary by CVE is: An issue was discovered in Roundcube Webmail before 1.5.15 and 1.6.15. The remote image blocking feature can be bypassed via SVG content in an e-mail message. This may lead to information disclosure or access-control bypass. This involves the animate element with attributeName=fill/filter/stroke. It is possible to read the advisory at roundcube.net. This vulnerability is uniquely identified as CVE-2026-35545 since 04/03/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. Upgrading to version 1.5.15 or 1.6.15 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 7ad62de184368bf42c0f522d1aacc030f5ddcc46 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version. Productinfo Type Mail Client Software Vendor Roundcube Name Webmail Version 1.5.0 1.5.1 1.5.2 1.5.3 1.5.4 1.5.5 1.5.6 1.5.7 1.5.8 1.5.9 1.5.10 1.5.11 1.5.12 1.5.13 1.5.14 1.6.0 1.6.1 1.6.2 1.6.3 1.6.4 1.6.5 1.6.6 1.6.7 1.6.8 1.6.9 1.6.10 1.6.11 1.6.12 1.6.13 1.6.14 License free CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 5.3 VulDB Meta Temp Score: 5.2 VulDB Base Score: 5.3 VulDB Temp Score: 5.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 5.3 CNA Vector (MITRE): 🔒 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: Resource transfer CWE: CWE-669 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: Webmail 1.5.15/1.6.15 Patch: 7ad62de184368bf42c0f522d1aacc030f5ddcc46 Timelineinfo 04/03/2026 Advisory disclosed 04/03/2026 +0 days CVE reserved 04/03/2026 +0 days VulDB entry created 04/03/2026 +0 days VulDB entry last update Sourcesinfo Advisory: roundcube.net Status: Confirmed CVE: CVE-2026-35545 (🔒) GCVE (CVE): GCVE-0-2026-35545 GCVE (VulDB): GCVE-100-355059 Entryinfo Created: 04/03/2026 07:46 Changes: 04/03/2026 07:46 (67) Complete: 🔍 Cache ID: 99:A26:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸