Cyber Resilience

CVE-2021-29368

HighPublic PoC

Published: 20 January 2023

Published
20 January 2023
Modified
03 April 2025
KEV Added
Patch
CVSS Score v3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.0056 68.8th percentile
Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-29368 is a high-severity Session Fixation (CWE-384) vulnerability in Cuppacms Cuppacms. Its CVSS base score is 8.8 (High).

Operationally, ranked in the top 31.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

Session fixation vulnerability in CuppaCMS thru commit 4c9b742b23b924cf4c1f943f48b278e06a17e297 on November 12, 2019 allows attackers to gain access to arbitrary user sessions.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

cuppacms
cuppacms
≤ 2019-11-12

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-384

Session termination after a set interval shortens the usable lifetime of a fixed session identifier, making successful exploitation of session fixation more difficult.

addresses: CWE-384

Re-authentication typically forces issuance of a new session, limiting the window for exploitation of a previously fixed session identifier.

addresses: CWE-384

Enforces proper session ID generation and binding, preventing fixation of a known session token.

References