CVE-2024-40508Public exploitNetwork attack vector

Cookie theft via reflected tab parameter injection

Published Sep 26, 2024 · Updated Sep 27, 2024

Reflected cross-site scripting in OpenPetra 2023.02 allows remote attackers to steal authenticated users' cookies via serverMConference.asmx. The endpoint reflects the tab query parameter into an HTML attribute without neutralizing quotes, allowing an injected onmouseover handler to read document.cookie. Exploitation requires an authenticated user to open the crafted URL and hover over the affected navigation item; the demonstrated consequence is disclosure of that user's cookies.

CVSS severity7.3
High
EPSS probability0.75%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Reflected cross-site scripting in OpenPetra 2023.02 allows remote attackers to steal authenticated users' cookies via serverMConference.asmx. The endpoint reflects the tab query parameter into an HTML attribute without neutralizing quotes, allowing an injected onmouseover handler to read document.cookie. Exploitation requires an authenticated user to open the crafted URL and hover over the affected navigation item; the demonstrated consequence is disclosure of that user's cookies.

The record

CVE
CVE-2024-40508
Published
Sep 26, 2024
Updated
Sep 27, 2024
Vendor
OpenPetra
Product
OpenPetra
Classifications
CWE-79, T1539
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 26, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 27, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=2023.02

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenPetra · OpenPetraversion=2023.02

Published CVSS scores

7.3CISA ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

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
Privilegesunauthenticated
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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo