CVE-2023-0827Public exploitNetwork attack vector

Browser script execution via unsanitized URL slug

Published Feb 14, 2023 · Updated Mar 20, 2025

Stored cross-site scripting in Pimcore before 10.5.17 allows remote authenticated users to execute script in another user's browser. Model\DataObject\Data\UrlSlug accepts a crafted slash-prefixed slug and passes it through checkValidity without escaping or rejecting HTML metacharacters. A low-privileged user must store the slug and a separate user must render the affected content, exposing that user's page data and actions to the injected script.

CVSS severity5.4
Medium
EPSS probability3.02%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in Pimcore before 10.5.17 allows remote authenticated users to execute script in another user's browser. Model\DataObject\Data\UrlSlug accepts a crafted slash-prefixed slug and passes it through checkValidity without escaping or rejecting HTML metacharacters. A low-privileged user must store the slug and a separate user must render the affected content, exposing that user's page data and actions to the injected script.

The record

CVE
CVE-2023-0827
Published
Feb 14, 2023
Updated
Mar 20, 2025
Vendor
Pimcore
Product
Pimcore
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 14, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 20, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <1.5.17

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Pimcore · Pimcoreversion=unspecified <1.5.17

Published CVSS scores

6.4SnykCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
6.3GitHub Advisory DatabaseCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
5.4GitLab Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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