AcyMailing extension for Joomla and WordPress: Exposure of Sensitive Information to an Unauthorized Actor
CVE-2026-118495 is a high-severity exposure of sensitive information to an unauthorized actor vulnerability in AcyMailing extension for Joomla and WordPress from Datasolution, with a CVSS 4.0 base score of 8.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected AcyMailing extension for Joomla and WordPress versions: 6.0.0-11.1.1. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.37% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of AcyMailing extension for Joomla and WordPress you run against the affected versions below, and install the vendor's latest release.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Datasolution | AcyMailing extension for Joomla and WordPress | 6.0.0-11.1.1 | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Attack requirements
- NoneThe attack does not depend on a particular deployment or configuration.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Confidentiality (vulnerable system)
- HighSerious loss of confidentiality on the vulnerable system.
- Integrity (vulnerable system)
- LowLimited loss of integrity on the vulnerable system.
- Availability (vulnerable system)
- NoneNo loss of availability on the vulnerable system.
- Confidentiality (other systems)
- NoneNo loss of confidentiality on systems beyond the vulnerable one.
- Integrity (other systems)
- NoneNo loss of integrity on systems beyond the vulnerable one.
- Availability (other systems)
- NoneNo loss of availability on systems beyond the vulnerable one.
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. Scored by CNA (joomla.org).
Official description
Joomla / WordPress Extension - acymailing.com - Exposure of sensitive information to an unauthorized actor in AcyMailing 6.0.0 - 11.1.1 - Exposure of sensitive information to an unauthorized actor in AcyMailing 6.0.0 through 11.1.1. An unauthenticated attacker who knows a subscriber's email address can read that subscriber's record, including the per-subscriber secret key that authorises the subscription management links. Holding that key, the attacker can act as that subscriber on those endpoints, which includes triggering the GDPR data export and the GDPR account deletion where those options are enabled.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Exposure of Sensitive Information to an Unauthorized Actor
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
How developers prevent this class of flaw
- Compartmentalize the system to have safe areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area. Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.
More Exposure of Sensitive Information to an Unauthorized Actor vulnerabilities (CWE-200)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
References
Other references
Other vulnerabilities in AcyMailing extension for Joomla and WordPress
- 7.1 High severity
- 8.8 High severity
Recent Exposure of Sensitive Information to an Unauthorized Actor vulnerabilities
- 8.2 High severity
- 9.2 Critical severity
- 7.1 High severity
- 7.1 High severity
- 8.4 High severity
- 7.5 High severity
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