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CVE-2024-29891

HIGHCVSS 8.7/10EPSS 0.76%

Last modified

CVE-2024-29891 is a high-severity vulnerability rated 8.7/10 on the CVSS scale. ZITADEL users can upload their own avatar image and various image types are allowed. Due to a missing check, an attacker could upload HTML and pretend it is an image to gain access to the victim's account in certain scenarios. EPSS estimates a 0.76% chance of exploitation in the next 30 days.

Description

ZITADEL users can upload their own avatar image and various image types are allowed. Due to a missing check, an attacker could upload HTML and pretend it is an image to gain access to the victim's account in certain scenarios. A possible victim would need to directly open the supposed image in the browser, where a session in ZITADEL needs to be active for this exploit to work. The exploit could only be reproduced if the victim was using Firefox. Chrome, Safari as well as Edge did not execute the code. This vulnerability is fixed in 2.48.3, 2.47.8, 2.46.5, 2.45.5, 2.44.7, 2.43.11, and 2.42.17.

Metrics

CVSS 3.1
8.7/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

EPSS Probability
0.76%

50.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
ZitadelZitadel< 2.42.17
ZitadelZitadel>= 2.43.0, < 2.43.11
ZitadelZitadel>= 2.44.0, < 2.44.7
ZitadelZitadel>= 2.45.0, < 2.45.5
ZitadelZitadel>= 2.46.0, < 2.46.5
ZitadelZitadel>= 2.47.0, < 2.47.8
ZitadelZitadel>= 2.48.0, < 2.48.3

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2024-29891?
ZITADEL users can upload their own avatar image and various image types are allowed. Due to a missing check, an attacker could upload HTML and pretend it is an image to gain access to the victim's account in certain scenarios. A possible victim would need to directly open the supposed image in the browser, where a session in ZITADEL needs to be active for this exploit to work. The exploit could only be reproduced if the victim was using Firefox. Chrome, Safari as well as Edge did not execute the code. This vulnerability is fixed in 2.48.3, 2.47.8, 2.46.5, 2.45.5, 2.44.7, 2.43.11, and 2.42.17.
How severe is CVE-2024-29891?
CVE-2024-29891 has a CVSS score of 8.7/10 (HIGH severity). The EPSS model estimates a 0.76% probability of exploitation in the next 30 days.
How do I fix CVE-2024-29891?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST