Improper Neutralization of Input During Web Page Generation Apache Sling Servlets Post

Also known as GHSA-8c82-9rgp-4qvr

Published 9 y ago 2017-08-14 · modified 4 mo ago 2026-06-17 · JSON

CVSS

6.1

v3.0 · NVD

CISA KEV

not known exploited

EPSS

3.7%

percentile 90%

Public exploits

none known

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.

Exploit prediction (EPSS)

3.66% probability of exploitation in the next 30 days, higher than 90% of all scored CVEs.

CVSS scores

Assigned by	Version	Score	Vector
NVD	3.0	6.1	`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`
NVD	2.0	4.3	`AV:N/AC:M/Au:N/C:N/I:P/A:N`
GitHub	3.0	6.1	`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`

Affected packages

Ecosystem	Package	Affected	Fixed in
maven	`org.apache.sling:org.apache.sling.servlets.post`	<2.3.22	2.3.22

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

securityfocus.com /bid/100284 · vdb-entry, x_refsource_BID, x_transferred
securityfocus.com /archive/1/541024/100/0/threaded · mailing-list, x_refsource_BUGTRAQ, x_transferred
packetstormsecurity.com /files/143758/Apache-Sling-Servlets-Post-2.3.20-Cross-Site-Scripting.html · x_refsource_MISC, x_transferred
lists.apache.org /thread.html/2f4b8333e44c6e7e0b00933bd4204ce64829952f60dbb6814f2cdf91%40%3Cdev.sling.apach · mailing-list, x_refsource_MLIST, x_transferred
issues.apache.org /jira/browse/SLING-7041 · x_refsource_CONFIRM, x_transferred
nvd.nist.gov /vuln/detail/CVE-2017-9802 · advisory
lists.apache.org /thread.html/2f4b8333e44c6e7e0b00933bd4204ce64829952f60dbb6814f2cdf91@%3Cdev.sling.apache. · web

Sources

CVE List: CVE-2017-9802
GitHub Advisory: GHSA-8c82-9rgp-4qvr
NVD: CVE-2017-9802

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.