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CVE-2020-26835 Cross-site scripting in SAP NetWeaver AS ABAP

Medium 5.3 Published Updated

An attacker can execute malicious JavaScript in a victim's browser via a crafted URL in SAP NetWeaver AS ABAP.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2020-26835?

CVE-2020-26835 is a medium-severity cross-site scripting vulnerability in Sap Netweaver Application Server Abap, published on 9 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

SAP NetWeaver AS ABAP, versions - 740, 750, 751, 752, 753, 754 , does not sufficiently encode URL which allows an attacker to input malicious java script in the URL which could be executed in the browser resulting in Reflected Cross-Site Scripting (XSS) vulnerability.

Weakness: CWE-79

Which versions are affected by CVE-2020-26835?

It affects 1 product.

Products include Sap Netweaver Application Server Abap.

How do I fix CVE-2020-26835?

No fix has been published for CVE-2020-26835 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2020-26835 being exploited?

There is no known exploitation of CVE-2020-26835 in the wild and no public exploit code.

All Sap Netweaver Application Server Abap vulnerabilities

Sources

Also known as GHSA-q8g9-phwg-wqq9.

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