What’s Vulnerable › Vulnerabilities

CVE-2023-49281: Open Redirect in Login Function of Calendarinho

• Severity: medium (CVSS 6.1 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: 2023-12-01 · updated 2026-06-17
• Weakness: CWE-601

Description

Calendarinho is an open source calendaring application to manage large teams of consultants. An Open Redirect issue occurs when a web application redirects users to external URLs without proper validation. This can lead to phishing attacks, where users are tricked into visiting malicious sites, potentially leading to information theft and reputational damage to the website used for redirection. The problem is has been patched in commit `15b2393`. Users are advised to update to a commit after `15b2393`. There are no known workarounds for this vulnerability.

Affected products

• Cainor Calendarinho: before 2023-10-11 — fixed in 2023-10-11

How to fix

Upgrade to a fixed version: Cainor Calendarinho 2023-10-11. Check the vendor advisory for mitigations.

References

• https://github.com/Cainor/Calendarinho/commit/15b2393efd69101727d27a4e710880ce46e84d70
• https://github.com/Cainor/Calendarinho/commit/9a0174bef939565a76cbe7762996ecddca9ba55e
• https://github.com/Cainor/Calendarinho/commit/c77defeb0103c1f7a4709799b8751aaeb0d09eed
• https://github.com/Cainor/Calendarinho/security/advisories/GHSA-g2gp-x888-6xrj
• https://github.com/Cainor/Calendarinho/commit/15b2393efd69101727d27a4e710880ce46e84d70
• https://github.com/Cainor/Calendarinho/commit/9a0174bef939565a76cbe7762996ecddca9ba55e
• https://github.com/Cainor/Calendarinho/commit/c77defeb0103c1f7a4709799b8751aaeb0d09eed
• https://github.com/Cainor/Calendarinho/security/advisories/GHSA-g2gp-x888-6xrj

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