Webasyst Framework · Open Redirect
Source GCVE Database
Not known to be exploited · CVSS 8.1 High : upgrade to 4.0.4 soon.
Data as of 2 Nov 2026, 22:58 UTC
Thin evidence
One scorer or none| CISA-ADP | CVSS 3.1 | 8.1 |
|---|
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 43% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 4.0.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 22 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2 Nov 2026.
What to do
Upgrade webasyst/webasyst-framework to 4.0.4.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
GitHubwebasyst/webasyst-frameworkpkg:github/webasyst/webasyst-frameworkOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
An issue in Webasyst Framework 4.0.3 and before allows a remote attacker to execute arbitrary code via a crafted OAuth authorization URL with an arbitrary redirect_uri.
References
- nvd.nist.gov/vuln/detail/CVE-2026-51954 (opens in a new tab)
- github.com/webasyst/webasyst-framework/issues/389 (opens in a new tab)
- github.com/Envincion/CVE-2026-51954 (opens in a new tab)
- support.webasyst.com/forum/48658/unvalidated-redirect_uri-in-oauth-authorization-flow-allows-authorization-code-interception-and-permanent-api-access (opens in a new tab)