Element Web and Element Desktop before 1.12.32 Forced Logout via Guest Credential URL Parameters
Summary
| CVE | CVE-2026-119407 |
|---|---|
| State | PUBLISHED |
| Assigner | VulnCheck |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-10-30 12:16:37 UTC |
| Updated | 2026-11-04 02:17:19 UTC |
| Description | Element Web and Element Desktop before 1.12.32 accept guest credentials from URL fragment parameters in loadSession, allowing remote unauthenticated attackers to log out users and clear local stores. Attackers can lure logged-in users into opening links with guest_user_id and guest_access_token to force an attacker-controlled guest session and destroy unbacked end-to-end encryption keys. |
Risk And Classification
Primary CVSS: v4.0 7.1 HIGH from [email protected]
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS: 0.001420000 probability, percentile 0.035270000 (date 2026-11-02)
Problem Types: CWE-352 | CWE-352 Cross-Site Request Forgery (CSRF)
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 7.1 | HIGH | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/C... |
| 4.0 | CNA | CVSS | 7.1 | HIGH | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N |
| 3.1 | [email protected] | Secondary | 7.1 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H |
| 3.1 | CNA | CVSS | 7.1 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H |
CVSS v4.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowAttack Requirements
NonePrivileges Required
NoneUser Interaction
PassiveConfidentiality
NoneIntegrity
LowAvailability
HighSub Conf.
NoneSub Integrity
NoneSub Availability
NoneCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
RequiredScope
UnchangedConfidentiality
NoneIntegrity
LowAvailability
HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Element-hq | Element-web | affected 1.12.32 semver | Not specified |
| CNA | Element-hq | Element-web | unaffected 1.12.32 semver | Not specified |
| CNA | Element-hq | Element-desktop | affected 1.12.32 semver | Not specified |
| CNA | Element-hq | Element-desktop | unaffected 1.12.32 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| abraxaslabs.tech/research/element-fragment-guest | [email protected] | abraxaslabs.tech | |
| github.com/element-hq/element-web/blob/v1.12.31/apps/web/src/Lifecycle.ts | [email protected] | github.com | |
| github.com/element-hq/element-web/security/advisories/GHSA-c88w-7h6p-27xr | [email protected] | github.com | |
| github.com/element-hq/element-web/commit/792453c88a399d570599f5d73b08b40... | [email protected] | github.com | |
| github.com/element-hq/element-web | [email protected] | github.com | |
| github.com/element-hq/element-web/releases/tag/v1.12.32 | [email protected] | github.com | |
| www.vulncheck.com/advisories/element-web-and-element-desktop-before-1.12.32-for... | [email protected] | www.vulncheck.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Abraxas Labs (en)
CNA: Michael Telatynski (en)
There are currently no legacy QID mappings associated with this CVE.