CVE-2023-28429Network attack vector

Session hijacking via unencoded DataObject tooltip

Published Mar 20, 2023 · Updated Feb 25, 2025

Stored XSS in Pimcore before 10.5.19 allows remote attackers to steal session cookies or redirect users through a DataObject tooltip. The AdminBundle edit.js path assigns untrusted field.tooltip content directly to tooltipHtml without HTML encoding, causing browsers to interpret embedded markup and script. Exploitation requires a victim to display the crafted tooltip; execution remains in that user's browser context but can expose the session cookie.

CVSS severity6.1
Medium
EPSS probability0.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Pimcore before 10.5.19 allows remote attackers to steal session cookies or redirect users through a DataObject tooltip. The AdminBundle edit.js path assigns untrusted field.tooltip content directly to tooltipHtml without HTML encoding, causing browsers to interpret embedded markup and script. Exploitation requires a victim to display the crafted tooltip; execution remains in that user's browser context but can expose the session cookie.

The record

CVE
CVE-2023-28429
Published
Mar 20, 2023
Updated
Feb 25, 2025
Vendor
Pimcore
Product
Pimcore
Classifications
CWE-79, T1539
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 20, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 25, 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=< 10.5.19

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Pimcore · Pimcoreversion=< 10.5.19

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1539Steal Web Session Cookie

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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