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VulnerabilityPublished Updated

CVE-2026-30840: ellite Wallos · Server-Side Request Forgery (SSRF)

Affects ellite WallosSource CVE Database V5

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Not known to be exploited · CVSS 8.8 High : upgrade to 4.6.2 soon.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.0 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 41% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 4.6.2
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 7 Mar 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 30 Oct 2026.

What to do

Upgrade Wallos and ellite/Wallos to 4.6.2.

Affected software

ProductAffectedFixed in
elliteWallosAffected
  • <4.6.2
Fixed in
  • 4.6.2
GitHubellite/Wallospkg:github/ellite/WallosOther threatsAffected
  • <4.6.2
Fixed in
  • 4.6.2

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

To mitigate CVE-2026-30840, organizations should immediately upgrade Wallos installations to version 4.6.2 or later, where the vulnerability is patched. Beyond patching, administrators should implement strict network segmentation and firewall rules to restrict the server's ability to make outbound requests to only trusted endpoints, minimizing the SSRF attack surface. Employing web application firewalls (WAFs) with SSRF detection capabilities can provide an additional layer of defense. Review and harden authentication mechanisms to reduce the risk of unauthorized access to the notification tester feature. Conduct regular security audits and penetration testing focusing on SSRF vectors and internal resource exposure. Developers should ensure robust input validation and whitelist allowed URLs or IP ranges for any server-side requests. Monitoring and logging outbound requests from the server can help detect anomalous SSRF activity early. Finally, educate users and administrators about the risks associated with SSRF vulnerabilities and the importance of timely patching.

Description

Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.6.2, there is a server-side request forgery vulnerability in notification testers. This issue has been patched in version 4.6.2.

References

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