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

published 2021-12-10 4 y ago modified 2026-06-17 4 mo ago also GHSA-3p85-p4qg-hcrp , EUVD-2021-2431

cvss: 5.5; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits: 0; none known

pimcore is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Patch / fix

fixed in 2 links 1

packagist pimcore/pimcore 10.2.6
pimcore pimcore/pimcore 10.2.6

github.com/pimcore/pimcore@34ed0e0 commit

Exploit prediction

0.78% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

huntr.dev https://huntr.dev/bounties/da173e66-76ba-4f98-b8fb-429aabf222d3 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.0	5.5	CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
NVD	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:P/A:N
GitHub	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem	package	affected	fixed in
packagist	pimcore/pimcore	<10.2.6	10.2.6

Affected products

pimcore pimcore/pimcore

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

github.com /pimcore/pimcore/commit/34ed0e050ff679b4b38414aef48ea1ff956f907a
web, patch, third-party-advisory
huntr.dev /bounties/da173e66-76ba-4f98-b8fb-429aabf222d3
web, exploit, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2021-4081
advisory
github.com /pimcore/pimcore
package

Sources

CVE List CVE-2021-4081
GitHub Advisory GHSA-3p85-p4qg-hcrp
NVD CVE-2021-4081

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.

Summary