Emlog: Path Traversal: '../filedir'
CVE-2025-61318 is a critical-severity path traversal: '../filedir' vulnerability in Emlog, with a CVSS 3.1 base score of 9.1 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected Emlog versions: 2.5.20. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.78% chance of exploitation within 30 days, higher than 57% of scored CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Check which version of Emlog 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
Version data comes from NVD's product matching. 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.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- NoneNo data is disclosed.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 9.1 | Critical | NVD |
| CVSS 3.1 | 5.3 | Medium | CISA (ADP) |
Official description
Emlog Pro 2.5.20 has an arbitrary file deletion vulnerability. This vulnerability stems from the admin/template.php component and the admin/plugin.php component. They fail to perform path verification and dangerous code filtering for deletion parameters, allowing attackers to exploit this feature for directory traversal.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Path Traversal: '../filedir'
The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize../ sequences that can resolve to a location that is outside of that directory.
How developers prevent this class of flaw
- Inputs should be decoded and canonicalized to the application's current internal representation before being validated (CWE-180). Make sure that the application does not decode the same input twice (CWE-174). Such errors could be used to bypass allowlist validation schemes by introducing dangerous inputs after they have been checked.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: poc, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Technical write-ups (may include proof of concept)
- github.com/AndyNull/em/blob/main/emlog%20pro%20-%20del%20vuln.mdExploit, Third Party Advisory
Other vulnerabilities in Emlog
- 8.7 High severity
- 8.6 High severity
- 9.8 Critical severity
- 7.4 High severity
- 7.7 High severity
- 8.5 High severity
Recent Path Traversal: '../filedir' vulnerabilities
- 7.5 High severity
- 8.2 High severity
- 8.3 High severity
- 8.6 High severity
- 8.8 High severity
- 7.5 High severity
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