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Fencer Vulns
medium 6.1

CVE-2023-3821 json

Cross-site Scripting (XSS) - Stored in pimcore/pimcore

published 2023-07-21 3 y ago modified 2026-06-17 4 mo ago also GHSA-78q2-cv3p-x9fm , EUVD-2023-1988

cvss
6.1
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 47%
public exploits
0
none known

Summary

Cross-site Scripting (XSS) - Stored in GitHub repository pimcore/pimcore prior to 10.6.4.

Patch / fix

  • packagist pimcore/pimcore 10.6.4
  • pimcore pimcore/pimcore 10.6.4
  • pimcore pimcore 10.6.4

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.57% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • huntr.dev https://huntr.dev/bounties/599ba4f6-c900-4161-9127-f1e6a6e29aaa referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 6.1 CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:H
NVD 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
GitHub 3.0 6.1 CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:H

Affected packages

ecosystem package affected fixed in
packagist pimcore/pimcore
<10.6.4
10.6.4

Affected products

  • pimcore pimcore/pimcore
  • pimcore pimcore

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

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.