CVE-2023-31123: effectindex/tripreporter vulnerable to improper password verification on POST `/api/v1/account/login`

Severity: critical (CVSS 9.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-05-08 · updated 2026-06-17
Weakness: CWE-287

Description

`effectindex/tripreporter` is a community-powered, universal platform for submitting and analyzing trip reports. Prior to commit bd80ba833b9023d39ca22e29874296c8729dd53b, any user with an account on an instance of `effectindex/tripreporter`, e.g. `subjective.report`, may be affected by an improper password verification vulnerability. The vulnerability allows any user with a password matching the password requirements to log in as any user. This allows access to accounts / data loss of the user. This issue is patched in commit bd80ba833b9023d39ca22e29874296c8729dd53b. No action necessary for users of `subjective.report`, and anyone running their own instance should update to this commit or newer as soon as possible. As a workaround, someone running their own instance may apply the patch manually.

Affected products

effectindex tripreporter: before 2023-04-30 — fixed in 2023-04-30

How to fix

Upgrade to a fixed version: effectindex tripreporter 2023-04-30. Check the vendor advisory for mitigations.

References

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