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VulnerabilityPublished

CVE-2026-124579: aaPanel BillionMail · Injection

Affects aaPanel BillionMailSource CVE Database V5

0
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Public exploit available · CVSS 5.3 Medium.

Data as of 9 Nov 2026, 08:05 UTC

CVSS 4.0 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (VulDB)CVSS 4.05.3
CNA (VulDB)CVSS 3.17.4
CNA (VulDB)CVSS 3.07.4
CNA (VulDB)CVSS 2.06.5
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 9 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: evidence found.

    CVSS exploit maturity: proof of concept public

  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), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 8 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
aaPanelBillionMailAffected
  • 4.0 – 4.9
10 affected builds
Fixed in–

CPE configurations (1)

  • cpe:2.3:a:aapanel:billionmail:*:*:*:*:*:*:*:*

AI-suggested

Users should consider restricting access to the Relay Configuration API or applying network-level controls to limit exposure. Monitor vendor communications for any future updates or patches.

Description

CVE-2026-124579 is an injection vulnerability in aaPanel BillionMail versions 4.0 through 4.9. It affects the Relay Configuration API component, specifically the file core/api/relay/v1/relay.go. The issue arises from manipulation of the helo_name argument, which can be exploited remotely. The vulnerability has a medium severity with a CVSS score of 5.3. Public exploit code has been disclosed, but the vendor has not responded or provided a patch.

References

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