CVE-2023-1515Public exploitNetwork attack vector

Session-cookie theft via unvalidated redirect expiry field

Published Mar 20, 2023 · Updated Feb 26, 2025

Stored XSS in Pimcore before 10.5.19 allows remote authenticated users to execute scripts in an administrator's browser via Redirects. The Redirects module's Expiry date editor accepted HTML-bearing values and later rendered the stored field; the fix rejects values when Ext.String.hasHtmlCharacters detects markup. Access to redirect configuration and interaction by a user who views the poisoned entry are required, exposing that user's session cookie or redirecting the browser to an attacker-chosen site.

CVSS severity5.4
Medium
EPSS probability0.35%
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 authenticated users to execute scripts in an administrator's browser via Redirects. The Redirects module's Expiry date editor accepted HTML-bearing values and later rendered the stored field; the fix rejects values when Ext.String.hasHtmlCharacters detects markup. Access to redirect configuration and interaction by a user who views the poisoned entry are required, exposing that user's session cookie or redirecting the browser to an attacker-chosen site.

The record

CVE
CVE-2023-1515
Published
Mar 20, 2023
Updated
Feb 26, 2025
Vendor
Pimcore
Product
Pimcore
Classifications
CWE-79, T1539
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 20, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 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 <10.5.19

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Pimcore · Pimcoreversion=unspecified <10.5.19

Published CVSS scores

5.2huntr.devCVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
5.4NIST NVDCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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')
T1539Steal Web Session Cookie

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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