Indico Insecure Access

published 2025-01-16 21 mo ago modified 2026-07-07 4 mo ago also GHSA-3wg7-r7q5-r2jf , PYSEC-2026-1459 , EUVD-2025-0088

cvss: 0.0; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 50%
public exploits: 0; none known

A Broken Object Level Authorization (BOLA) vulnerability in Indico through 3.3.5 allows attackers to read information by sending a crafted POST request to the component /api/principals. NOTE: this is disputed by the Supplier because the product intentionally lets all users retrieve certain information about other user accounts (this functionality is, in the current design, not restricted to any privileged roles such as event organizer).

Patch / fix

fixed in 1

pypi indico 3.3.3

CISA SSVC

Exploitation: Proof of concept is public
Automatable: yes
Technical impact: partial
Assessed: 21 mo ago (2025-01-17)

Exploit prediction

0.64% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/cetinpy/CVE-2024-50633 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	0.0	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
GitHub	3.1	0.0	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N
OSV	3.1	0.0	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N

Affected packages

ecosystem	package	affected	fixed in
pypi	indico	>=3.2.9, <3.3.3	3.3.3

Affected products

CERN Indico

Classification

Weakness

CWE-201 Insertion of Sensitive Information Into Sent Data
CWE-639 Authorization Bypass Through User-Controlled Key
CWE-862 Missing Authorization

References

github.com /cetinpy/CVE-2024-50633
web, exploit, third-party-advisory
github.com /cetinpy/CVE-2024-50633/issues/1
web, issue-tracking
nvd.nist.gov /vuln/detail/CVE-2024-50633
advisory
github.com /indico/indico
web
pypi.org /project/indico
package
github.com /advisories/GHSA-3wg7-r7q5-r2jf
advisory

Sources

Fencer Vulns 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.

Summary