CVE-2026-33399: high-severity vulnerability in ellite Wallos
Wallos: SSRF Bypass - Incomplete Fix for CVE-2026-30839/30840
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.7epss 0.3%
Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.7.0, the SSRF fix applied in version 4.6.2 for CVE-2026-30839 and CVE-2026-30840 is incomplete. The validate_webhook_url_for_ssrf() protection was added to the test* notification endpoints but not to the corresponding save* endpoints. An authenticated user can save an internal/private IP address as a notification URL, and when the cron job sendnotifications.php executes, the request is sent to the internal IP without any SSRF validation. This issue has been patched in version 4.7.0.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Affected products
ellite · WallosRelated CVEs — ellite Wallos
In the same product, most dangerous first.
CVE-2026-30828HIGHWallos: SSRF via url parameter leading to File TraversalEPSS 0.6%CVE-2026-54600HIGHWallos: Unauthenticated database replacement via import endpoint on fresh installEPSS 0.6%CVE-2026-61640HIGHWallos: SSRF via OIDC Token/UserInfo URL ConfigurationEPSS 0.5%CVE-2026-61641HIGHWallos: OIDC account takeover via email-based account linking without `email_verified` checkEPSS 0.5%CVE-2026-30840HIGHWallos: Server-Side Request Forgery (SSRF) in Notification TestersEPSS 0.5%CVE-2026-61639HIGHWallos: Zip Slip path traversal in database restore writes files to webrootEPSS 0.5%