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Vulnerability record · CVE-2017-9802 · published 14 August 2017

CVE-2017-9802: Apache sling servlets post cross-site scripting vulnerability

Apache · Sling Servlets Post

The Javascript method Sling.evalString() in Apache Sling Servlets Post before 2.3.22 uses the javascript 'eval' function to parse input strings, which allows for XSS attacks by passing specially crafted input strings.

6.1 CVSS 3.0 Medium EPSS 3.7% · top 10.8% CWE-79 · Cross-site scripting
6.1CVSS 3.0 base score, v2 4.3
3.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
10References
17 Jun 2026Last modified by NVD

Description

The Javascript method Sling.evalString() in Apache Sling Servlets Post before 2.3.22 uses the javascript 'eval' function to parse input strings, which allows for XSS attacks by passing specially crafted input strings.

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://packetstormsecurity.com/files/143758/Apache-Sling-Servlets-Post-2.3.20-Cross-Site-Scripting.html
http://www.securityfocus.com/archive/1/541024/100/0/threaded
http://www.securityfocus.com/bid/100284 Third Party AdvisoryVDB Entry
https://issues.apache.org/jira/browse/SLING-7041 Issue TrackingVendor Advisory
https://lists.apache.org/thread.html/2f4b8333e44c6e7e0b00933bd4204ce64829952f60dbb6814f2cdf91%40%3Cdev.sling.apache.org%
http://packetstormsecurity.com/files/143758/Apache-Sling-Servlets-Post-2.3.20-Cross-Site-Scripting.html
http://www.securityfocus.com/archive/1/541024/100/0/threaded
http://www.securityfocus.com/bid/100284 Third Party AdvisoryVDB Entry
https://issues.apache.org/jira/browse/SLING-7041 Issue TrackingVendor Advisory
https://lists.apache.org/thread.html/2f4b8333e44c6e7e0b00933bd4204ce64829952f60dbb6814f2cdf91%40%3Cdev.sling.apache.org%

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Source: NIST National Vulnerability Database (record CVE-2017-9802), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.