CVE-2016-6798

In the XSS Protection API module before 1.0.12 in Apache Sling, the method XSS.getValidXML() uses an insecure SAX parser to validate the input string, which allows for XXE attacks in all scripts which use this method to validate user input, potentially allowing an attacker to read sensitive data on the filesystem, perform same-site-request-forgery (SSRF), port-scanning behind the firewall or DoS the application.

Affected

Apache Software Foundation · Apache Sling

CVSS v3.0 NVD

9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 NVD

7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS

3.67% chance of exploitation in the next 30 days, 90th percentile

Published

2017-07-19

Updated

2024-09-16

Proof-of-concept exploits (1)

• tafamace/CVE-2016-67980★ · 2018-11-19

Security advisories

• http://www.securityfocus.com/bid/99873
• advisories/GHSA-7g54-vgp6-jj5w

References

• CVE Record
• NVD entry

Related

• CVE-2012-5575
• CVE-2013-4002
• CVE-2014-8110
• CVE-2016-0793
• CVE-2016-4438
• CVE-2017-12624