What is CVE-2023-1312?

CVE-2023-1312 is a medium-severity vulnerability in Pimcore, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2023-03-10.

How severe is CVE-2023-1312?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Is CVE-2023-1312 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Pimcore

CVE-2023-1312

Cross-site Scripting (XSS) - Reflected in GitHub repository pimcore/pimcore prior to 10.5.19.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-03-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (33.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 33.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Pimcore
Pimcore Pimcore/pimcore — versions unspecified

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

huntr.dev/bounties/2a64a32d-b1cc-4def-91da-18040d59f356 (Exploit, Patch, Third Party Advisory)
github.com/pimcore/pimcore/commit/d35d0712858f24d0ec96ddfd4cbe82ff4b5a5fbb (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2023-1312?: CVE-2023-1312 is a medium-severity vulnerability in Pimcore, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2023-03-10.
How severe is CVE-2023-1312?: Medium severity. CVSS v3 base score is 4.8 out of 10.
Is CVE-2023-1312 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.