cve.bz

CVE-2016-6798

9.8 criticalEPSS 3.7%

Critical (9.8) in apache sling. EPSS 3.7% chance of exploitation in the next 30 days. Fixed in org.apache.sling:org.apache.sling.xss 1.0.12.

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.

Severity

CVSS 3.0

9.8 critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
3.7% chance of exploitation in the next 30 days; higher than 89% of CVEs (scores of 2026-10-31)
CWE
CWE-611
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-7g54-vgp6-jj5wMavenorg.apache.sling:org.apache.sling.xss<1.0.121.0.12
GHSA-7g54-vgp6-jj5wMavenorg.apache.sling:org.apache.sling.xss.compat<1.1.01.1.0

References

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