Cola Dnslog 1.3.2 TXT Record os.path.join path traversal

Summaryinfo

A vulnerability was found in Cola Dnslog 1.3.2. It has been classified as critical. Affected is the function os.path.join of the component TXT Record Handler. Performing a manipulation results in path traversal. This vulnerability is cataloged as CVE-2025-57403. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Cola Dnslog 1.3.2. It has been classified as critical. This affects the function os.path.join of the component TXT Record Handler. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Cola Dnslog v1.3.2 is vulnerable to Directory Traversal. When a DNS query for a TXT record is processed, the application concatenates the requested URL (or a portion of it) directly with a base path using os.path.join. This bypass allows directory traversal or absolute path injection, leading to the potential exposure of sensitive information.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2025-57403 since 08/17/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/26/2025). MITRE ATT&CK project uses the attack technique T1006 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-205449). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

• Cola

Name

• Dnslog

Version

• 1.3.2

CPE 2.3info

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CPE 2.2info

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If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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