How severe is CVE-2017-15717?

CVE-2017-15717 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2017-15717 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-15717?

CVE-2017-15717 primarily affects Apache Sling Xss Protection Api. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-15717?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2017-15717 published?

CVE-2017-15717 was published on 2018-01-10 and last updated on 2026-06-17.

CVE-2017-15717

CVE-2017-15717 is a medium-severity vulnerability in Apache Sling Xss Protection Api with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Apache Sling Xss Protection Api
Published: 2018-01-10
Last modified: 2026-06-17

Description

A flaw in the way URLs are escaped and encoded in the org.apache.sling.xss.impl.XSSAPIImpl#getValidHref and org.apache.sling.xss.impl.XSSFilterImpl#isValidHref allows special crafted URLs to pass as valid, although they carry XSS payloads. The affected versions are Apache Sling XSS Protection API 1.0.4 to 1.0.18, Apache Sling XSS Protection API Compat 1.1.0 and Apache Sling XSS Protection API 2.0.0.

Frequently asked questions

What is CVE-2017-15717?: A flaw in the way URLs are escaped and encoded in the org.apache.sling.xss.impl.XSSAPIImpl#getValidHref and org.apache.sling.xss.impl.XSSFilterImpl#isValidHref allows special crafted URLs to pass as valid, although they carry XSS payloads. The affected versions are Apache Sling XSS Protection API 1.0.4 to 1.0.18, Apache Sling XSS Protection API Compat 1.1.0 and Apache Sling XSS Protection API 2.0.0.
How severe is CVE-2017-15717?: CVE-2017-15717 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2017-15717 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-15717?: CVE-2017-15717 primarily affects Apache Sling Xss Protection Api. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-15717?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-15717 published?: CVE-2017-15717 was published on 2018-01-10 and last updated on 2026-06-17.

References

https://s.apache.org/CVE-2017-15717

Affected products (3)

cpe:2.3:a:apache:sling_xss_protection_api:*:*:*:*:*:*:*:*
cpe:2.3:a:apache:sling_xss_protection_api:2.0.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:sling_xss_protection_api_compat:1.1.0:*:*:*:*:*:*:*

More vulnerabilities in Apache Sling Xss Protection Api

CVE-2026-92001 — Medium (CVSS 6.1): Improper restriction of recursive entity references in DTDs ('XML entity expansion') vulnerability in Apache Sling…
CVE-2026-91999 — Medium (CVSS 6.1): Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Sling…
CVE-2026-91928 — Medium (CVSS 6.1): Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Sling…
CVE-2026-91852 — Medium (CVSS 6.1): Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Sling…
CVE-2026-73192 — Medium (CVSS 6.1): An improper neutralization of input during web page generation ('Cross-site Scripting') [CWE-79] vulnerability when…

All CVEs affecting Apache Sling Xss Protection Api →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2026-106102 — Critical (CVSS 10.0): Quasar Framework is a framework for building high-performance Vue.js user interfaces. Prior to 2.22.0, the SSR-only…
CVE-2026-59167 — Critical (CVSS 10.0): SunEditor is a lightweight and powerful WYSIWYG editor in vanilla JavaScript with no dependencies. Prior to 2.47.11,…
CVE-2026-85061 — Critical (CVSS 10.0): MapLibre GL JS is an interactive vector tile map library for web browsers. Prior to 6.4.1, DOM.sanitize() in…
CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →