7.3
HIGH CVSS 4.0
CVE-2026-12559
Stored Cross-Site Scripting (XSS) in OpenText Vendor Invoice Management for SAP Solutions Capture Validation Application
Description

A Stored Cross-Site Scripting (XSS) vulnerability has been identified in OpenText Vendor Invoice Management for SAP Solutions Capture Validation application. Under certain conditions, this issue could allow execution of unauthorized script content in a user's browser, potentially impacting confidentiality and integrity of information processed through the application.

INFO

Published Date :

Sept. 24, 2026, 3:17 p.m.

Last Modified :

Sept. 24, 2026, 3:17 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-12559 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 4.0 HIGH f81092c5-7f14-476d-80dc-24857f90be84
CVSS 4.0 HIGH [email protected]
Solution
Address stored XSS by applying security patches or updates provided by the vendor.
  • Apply security patches from OpenText.
  • Update the application to the latest version.
  • Validate script content rigorously.
  • Sanitize all user inputs.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-12559.

URL Resource
https://support.opentext.com/csm?id=kb_article_view&sysparm_article=KB0869040
https://support.opentext.com/csm?id=ot_kb_unauthenticated&sysparm_article=KB0869044
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-12559 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-12559 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-12559 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-12559 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Sep. 24, 2026

    Action Type Old Value New Value
    Added Description A Stored Cross-Site Scripting (XSS) vulnerability has been identified in OpenText Vendor Invoice Management for SAP Solutions Capture Validation application. Under certain conditions, this issue could allow execution of unauthorized script content in a user's browser, potentially impacting confidentiality and integrity of information processed through the application.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:H/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:N/R:U/V:D/RE:M/U:Red
    Added CWE CWE-79
    Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/12xxx/CVE-2026-12559.json">CVE-2026-12559</a>
    Added Reference https://support.opentext.com/csm?id=kb_article_view&sysparm_article=KB0869040
    Added Reference https://support.opentext.com/csm?id=ot_kb_unauthenticated&sysparm_article=KB0869044
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Sep. 24, 2026

    Action Type Old Value New Value
    Added SSVC {'id': 'CVE-2026-12559', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-24T14:51:19.732789Z'}
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.