CVE-2026-66779: CWE-79: Improper Neutralization of Input During Web Page Generation in SAP_SE SAP NetWeaver Application Server ABAP
CVE-2026-66779 is a Cross-Site Scripting (XSS) vulnerability in SAP NetWeaver Application Server ABAP affecting specific versions. An authenticated attacker can craft a malicious link that, when accessed by an authenticated victim, causes execution of injected malicious content in the victim's browser. This vulnerability impacts confidentiality highly and integrity to a lesser extent, with no effect on availability. The CVSS score is 6.3 (medium severity). No official patch or remediation guidance is currently available.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-66779) in SAP NetWeaver Application Server ABAP arises from improper neutralization of input during web page generation (CWE-79). An authenticated attacker can create a malicious link that, if accessed by an authenticated user, results in reflected XSS where injected input is processed and executed in the victim's browser DOM context. The vulnerability affects versions 755, 756, 757, 758, and 816 of the product. The impact includes high confidentiality loss and low integrity impact, with availability unaffected. No vendor advisory or patch information is currently provided.
Potential Impact
Successful exploitation allows execution of malicious scripts in the context of an authenticated victim's browser, leading to potential confidentiality breaches and limited integrity impact. Availability of the system is not affected. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, limit exposure by restricting access to affected SAP NetWeaver Application Server ABAP versions and exercising caution with links received from untrusted sources. Monitor SAP advisories for updates.
CVE-2026-66779: CWE-79: Improper Neutralization of Input During Web Page Generation in SAP_SE SAP NetWeaver Application Server ABAP
Description
CVE-2026-66779 is a Cross-Site Scripting (XSS) vulnerability in SAP NetWeaver Application Server ABAP affecting specific versions. An authenticated attacker can craft a malicious link that, when accessed by an authenticated victim, causes execution of injected malicious content in the victim's browser. This vulnerability impacts confidentiality highly and integrity to a lesser extent, with no effect on availability. The CVSS score is 6.3 (medium severity). No official patch or remediation guidance is currently available.
CVSS v3.1
Score 6.3medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-66779) in SAP NetWeaver Application Server ABAP arises from improper neutralization of input during web page generation (CWE-79). An authenticated attacker can create a malicious link that, if accessed by an authenticated user, results in reflected XSS where injected input is processed and executed in the victim's browser DOM context. The vulnerability affects versions 755, 756, 757, 758, and 816 of the product. The impact includes high confidentiality loss and low integrity impact, with availability unaffected. No vendor advisory or patch information is currently provided.
Potential Impact
Successful exploitation allows execution of malicious scripts in the context of an authenticated victim's browser, leading to potential confidentiality breaches and limited integrity impact. Availability of the system is not affected. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, limit exposure by restricting access to affected SAP NetWeaver Application Server ABAP versions and exercising caution with links received from untrusted sources. Monitor SAP advisories for updates.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- sap
- Date Reserved
- 2026-07-27T17:33:56.950Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7a6fdfbf8831d539db4ba0
Added to database: 08/11/2026, 00:42:07 UTC
Last enriched: 08/11/2026, 00:56:53 UTC
Last updated: 08/11/2026, 01:01:01 UTC
Views: 4
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