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CVE-2023-23937

19
FAUCET Score

CVE-2023-23937 describes an improper content-type validation vulnerability in Pimcore, an open-source data and experience management platform. Authenticated users can bypass file upload restrictions by spoofing a valid file signature, enabling the upload of malicious HTML files containing JavaScript. This medium-severity vulnerability (CVSS 5.4) allows for client-side script execution, potentially leading to information disclosure or unauthorized actions within the user's browser context. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 10.5.16CPE matchmatch criteria
cpe:2.3:a:pimcore:pimcore:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.2HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
4.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.48%
Probability of exploitation in next 30 days
EPSS Percentile
38.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0048 is in the 48th percentile among its peer group of 21,974 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

composerpatch availablevia ghsa
Product: pimcore/pimcoreFixed in: 10.5.16
github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

composerGHSA-8xv4-jj4h-qww6medium

Pimcore contains Unrestricted Upload of File with Dangerous Type

Feb 2, 2023

References

github.com / pimcore/pimcore/commit/75a448ef8ac74424cf4e723afeb6d05f9eed872f
Patch
github.com / pimcore/pimcore/security/advisories/GHSA-8xv4-jj4h-qww6
PatchVendor Advisory