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CVE-2021-26642 — Vulnerability in xpressengine/xpressengine — CVE...

CRITICAL

XpressEngine vulnerable to Unrestricted Upload of File with Dangerous Type

Published January 20, 2023Updated November 8, 2023Source: osv

Summary

When uploading an image file to a bulletin board developed with XpressEngine, a vulnerability in which an arbitrary file can be uploaded due to insufficient verification of the file. A remote attacker can use this vulnerability to execute arbitrary code on the server where the bulletin board is running.

Advisory Timeline

  • First published January 20, 2023 (1361 days ago).
  • Last revised November 8, 2023 — 291 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Composer
Update xpressengine/xpressengine to 3.0.15 or later
composer require "xpressengine/xpressengine:^3.0.15"

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: packagist (1).

PackageEcosystemAffectedFixed In
xpressengine/xpressengine
packagist
3.0.0, 3.0.0-beta, 3.0.0-beta.10, 3.0.0-beta.11 (+49 more)3.0.15

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-434
    Unrestricted File UploadMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

References

Frequently Asked Questions

What is CVE-2021-26642?
XpressEngine vulnerable to Unrestricted Upload of File with Dangerous Type This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2021-26642?
CVE-2021-26642 affects xpressengine/xpressengine. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2021-26642 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-8r5j-22j5-w4cm

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