CVE-2026-46616: Umbraco-CMS · Open Redirect
Affects Umbraco-CMSSource CVE Database V5
Not known to be exploited · CVSS 5.4 Medium : upgrade to 17.4.0 or 13.14.0 when convenient.
Data as of 29 Oct 2026, 19:04 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 17.4.0, 13.14.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 10 Jun 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 29 Oct 2026.
What to do
Upgrade Umbraco-CMS and umbraco/Umbraco-CMS to 17.4.0 or 13.14.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| umbracoUmbraco-CMS | Affected
| Fixed in
|
| umbracoUmbraco-CMS | Affected
| Fixed in
|
GitHubumbraco/Umbraco-CMSpkg:github/umbraco/Umbraco-CMSOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade Umbraco CMS to version 13.14.0 or later, or 17.4.0 or later, where the vulnerability has been patched. No other official remediation or temporary fixes are indicated. Patch status is confirmed by the vendor advisory stating the fix is included in these versions.
Description
Umbraco CMS versions prior to 13.14.0 and 17.4.0 contain an open redirect vulnerability in some Surface Controllers that handle member-related operations. These controllers fail to properly validate redirect URLs derived from user-controlled query parameters, allowing malicious redirection. This vulnerability has been addressed in versions 13.14.0 and 17.4.0.