Element Desktop versions 1.11.70 through 1.11.80 contain a vulnerability which can, under specially crafted conditions, lead to the access token becoming exposed to third parties. At least one vector has been identified internally, involving malicious widgets, but other vectors may exist. Users are strongly advised to upgrade to version 1.11.81 to remediate the issue.
We classify this as a High severity security issue even if the CVSS score would be lower. CVSS score considering end-to-end encryption: AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L 5.5. CVSS score ignoring end-to-end encryption: AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L 6.8.
Impact
Potential access token exposure to malicious third parties under crafted conditions.
Workarounds
Avoid granting permissions to untrusted widgets.
References
N/A
Element Desktop versions 1.11.70 through 1.11.80 contain a vulnerability which can, under specially crafted conditions, lead to the access token becoming exposed to third parties. At least one vector has been identified internally, involving malicious widgets, but other vectors may exist. Users are strongly advised to upgrade to version 1.11.81 to remediate the issue.
We classify this as a High severity security issue even if the CVSS score would be lower. CVSS score considering end-to-end encryption: AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L 5.5. CVSS score ignoring end-to-end encryption: AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L 6.8.
Impact
Potential access token exposure to malicious third parties under crafted conditions.
Workarounds
Avoid granting permissions to untrusted widgets.
References
N/A