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Fencer Intel
high 8.7

CVE-2024-29891 json

ZITADEL Improper Content-Type Validation Leads to Account Takeover via Stored XSS + CSP Bypass

published 2y ago modified 2mo ago also EUVD-2024-0942 , GHSA-hr5w-cwwq-2v4m , GO-2024-2665

cvss
8.7
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 55%
public exploits
0
none known

Summary

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.

Patch / fix

  • go github.com/zitadel/zitadel 2.42.17, 2.43.11, 2.44.7, 2.45.5, 2.46.5, 2.47.8, 2.48.3
  • zitadel zitadel 2.42.17, 2.43.11, 2.44.7, 2.45.5, 2.46.5, 2.47.8, 2.48.3

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2y ago

Exploit prediction

0.76% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CNA 3.1 8.7 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
GitHub 3.1 8.7 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
NVD 3.1 8.7 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Affected packages

ecosystem package affected fixed in
go github.com/zitadel/zitadel
<2.42.17
>=2.43.0, <2.43.11
>=2.44.0, <2.44.7
>=2.45.0, <2.45.5
>=2.46.0, <2.46.5
>=2.47.0, <2.47.8
>=2.48.0, <2.48.3
all versions
2.42.17
2.43.11
2.44.7
2.45.5
2.46.5
2.47.8
2.48.3

Affected products

  • zitadel zitadel

Classification

Weakness
  • CWE-434 Unrestricted Upload of File with Dangerous Type
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.