web2py has an Open Redirect Vulnerability

CVE-2026-25198 → View on GitHub ↗ View on CVE.org ↗ View on NVD ↗

Description

web2py versions 2.27.1-stable+timestamp.2023.11.16.08.03.57 and prior contain an Open Redirect vulnerability. If this vulnerability is exploited, the user may be redirected to an arbitrary website when accessing a specially crafted URL. As a result, the user may become a victim of a phishing attack.

Basic information

Type
reviewed
Severity
medium
Advisory on GitHub
Open advisory ↗
Repository advisory
—
Source code
Browse source ↗
Published (advisory)
2026-02-05 09:31:13 UTC
Updated
2026-02-05 18:31:11 UTC
GitHub reviewed
2026-02-05 18:31:10 UTC
NVD published
2026-02-05

EPSS Score

Score Percentile
0.01% 2.11%

CVSS Scores

Base score Version Severity Vector
4.7 3.0 —
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
5.1 4.0 —
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network.
Attack complexity (AC:L)
Exploitation conditions are straightforward and stable.
Attack requirements (AT:N)
No additional preconditions are required beyond normal reachability.
Privileges required (PR:N)
No privileges are required.
User interaction (UI:A)
User interaction is required in an active way.
Vulnerable system confidentiality impact (VC:N)
No confidentiality impact on the vulnerable system.
Vulnerable system integrity impact (VI:N)
No integrity impact on the vulnerable system.
Vulnerable system availability impact (VA:N)
No availability impact on the vulnerable system.
Subsequent system confidentiality impact (SC:N)
No confidentiality impact on subsequent systems.
Subsequent system integrity impact (SI:L)
Limited integrity impact on subsequent systems.
Subsequent system availability impact (SA:N)
No availability impact on subsequent systems.

Identifiers

Type Value
GHSA GHSA-rf8c-3f5p-xv45 ↗
CVE CVE-2026-25198 ↗

CWEs

CWE id Name
CWE-601 URL Redirection to Untrusted Site ('Open Redirect')

Affected packages (1)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem Package Vulnerable range First patched Vulnerable functions
pip web2py < 3.1.1 3.1.1 —

References

cvelogic Threat Intelligence