CVE-2026-94131
CVE-2026-94131 — Joomla Extension - acymailing.com - Unauthenticated arbitrary file deletion in AcyMailing Enterprise extension < 11.1.0
Joomla Extension - acymailing.com - Unauthenticated arbitrary file deletion in AcyMailing Enterprise extension < 11.1.0 - A subscriber could store a path in a file-type custom field and have AcyMailing delete that file when the field was cleared, including files outside the upload folder such as configuration.php.
Published Updated Sources: NVD, acymailing.com (CNA), GitHub, GitHub Security Advisory
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the scoring sources call it.
Exploitation
Exploit code
public exploit, none observed
EPSS
Not scored
FIRST has not published a score
CVSS base
8.3
high
Remediation
The vendor's own words where we have them.
Upgrade AcyMailing extension for Joomla to a fixed release. Apply vendor patches per advisory and restrict external exposure of the affected component until patched.
First 24 hours
Ordered from the record's own fields — exposure first, because you cannot patch what you have not found.
- Identify exposed assets running affected vendor/product/version combinations.
- Prioritize based on EPSS, PoC availability, and external exposure.
- Search available logs for exploit probes, errors, authentication anomalies, or suspicious child processes matching the vulnerability class.
Affected scope
Vendor, product and version as the advisories word them.
| Vendor | Product | Versions | Status |
|---|---|---|---|
| acymailing.com | AcyMailing extension for Joomla | 1.0.0-11.0.5 | Vulnerable |
Attack characteristics
The CVSS vector, decoded. It describes the attack, not your exposure to it.
Attack Complexity
Low
Attack Vector
Network
Privileges Req
None
User Interaction
None
Every base score collected
Sources score independently and disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Source |
|---|---|---|---|---|---|
| 8.3 | CVSS 4.0 | high | — | — | acymailing.com (CNA) |
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness & attack patterns
- CWE-89SQL Injection
Inferred from the weakness class — not observed against this CVE.
Public exploit
Capability, not use: code existing is a different claim from anyone running it.
Repositories
2
Detection
Read off the CVSS vector and the weakness class. Starting points, not rules we have tested.
- Prioritize edge telemetry for network-reachable AcyMailing extension for Joomla.
- Monitor for scanner or exploit-pattern traffic after 2 public PoC repositories were reported.
Timeline
What happened to this CVE, newest first — with the readings a source repeats on a schedule counted underneath rather than listed.
- 2026
Added · CVSS 3.1 8.3 (AV:N)
Sep 26, 2026 · NVD
Initial · CVE published
Sep 26, 2026 · NVD
Added · GHSA-657v-94xx-8q7f published (high)
Sep 26, 2026 · GitHub Security Advisory
References
3 on the record
- www.acymailing.com/
Vendor Advisory
- nvd.nist.gov/vuln/detail/CVE-2026-94131
NVD
- github.com/advisories/GHSA-657v-94xx-8q7f
Exploit, Third Party Advisory
Elsewhere on this site
- acymailing.comevery CVE for this vendor
- Injectionsame class
- CWE-89other pages naming this weakness
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.
Answered from this record1
What should defenders know first?
CVE-2026-94131 is Joomla Extension - acymailing.com - Unauthenticated arbitrary file deletion in AcyMailing Enterprise extension < 11.1.0, a high vulnerability affecting AcyMailing extension for Joomla from acymailing.com. The current evidence does not list it in CISA KEV, and the exploit status is: Active exploitation is not confirmed from current sources for CVE-2026-94131. Public exploit evidence is: 2 public PoC repositories reported; 0 marked weaponized in current dataset. The affected-version evidence is listed in the key facts and affected products tables. Defenders should first verify whether exposed or business-critical assets run those versions, then apply vendor patches or mitigations, restrict reachable attack surface, and preserve logs for detection review. CVSS 8.3 describes technical severity, while EPSS 0% helps estimate near-term exploit likelihood; neither replaces asset context. Unknown fields should remain explicit in tickets, and threat actor, IOC, victimology, or payload claims should not be added unless a cited source supports them. Monitor CISA KEV, vendor advisories, NVD changes, public PoC repositories, and internal telemetry for update triggers.