A vulnerability, which was classified as critical, was found in webpy web.py 0.70. Affected is the function PostgresDB._process_insert_query of the file web/db.py. The manipulation of the argument seqname leads to sql injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-8443-1 advisory.

    It was discovered that web.py incorrectly handled sequence names in PostgreSQL insert queries. An attacker     could possibly use this issue to perform SQL injection attacks, resulting in the alteration or exposure of     database information.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - A vulnerability, which was classified as critical, was found in webpy web.py 0.70. Affected is the     function PostgresDB._process_insert_query of the file web/db.py. The manipulation of the argument seqname     leads to sql injection. It is possible to launch the attack remotely. The exploit has been disclosed to     the public and may be used. (CVE-2025-3818)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote Debian 11 host has packages installed that are affected by a vulnerability as referenced in the dla-4189 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-4189-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                          Adrian Bunk     May 29, 2025                                  https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : webpy     Version        : 1:0.61-1+deb11u1     CVE ID         : CVE-2025-3818     Debian Bug     : 1103780

    PostgreSQL SQL injection has been fixed in web.py, a Web framework for     Python applications.

    For Debian 11 bullseye, this problem has been fixed in version     1:0.61-1+deb11u1.

    We recommend that you upgrade your webpy packages.

    For the detailed security status of webpy please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/webpy

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
322832	Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS : web.py vulnerability (USN-8443-1)	Nessus	Ubuntu Local Security Checks	medium
250870	Linux Distros Unpatched Vulnerability : CVE-2025-3818	Nessus	Misc.	medium
237461	Debian dla-4189 : python-webpy-doc - security update	Nessus	Debian Local Security Checks	medium

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CVE-2025-3818

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