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CVE-2017-6817

21
FAUCET Score

CVE-2017-6817 describes an authenticated Cross-Site Scripting (XSS) vulnerability in WordPress versions prior to 4.7.3, specifically within the YouTube URL Embed functionality in wp-includes/embed.php. This medium-severity flaw (CVSS 5.4) allows a logged-in attacker to inject malicious scripts, potentially leading to information disclosure and limited data alteration, requiring user interaction. While not actively exploited in the wild (no KEV entry), its presence in WordPress, a widely used platform, warrants attention, and it has garnered some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.7.2CPE matchmatch criteria
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.4MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.35%
Probability of exploitation in next 30 days
EPSS Percentile
81.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0235 is in the 98th percentile among its peer group of 15,239 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

codex.wordpress.org / Version_4.7.3
PatchVendor Advisory
github.com / WordPress/WordPress/commit/419c8d97ce8df7d5004ee0b566bc5e095f0a6ca8
Issue TrackingPatchThird Party Advisory
wordpress.org / news/2017/03/wordpress-4-7-3-security-and-maintenance-release
PatchRelease NotesVendor Advisory
wpvulndb.com / vulnerabilities/8768
PatchThird Party Advisory
debian.org / security/2017/dsa-3815
Third Party Advisory
securityfocus.com / bid/96601
Third Party AdvisoryVDB Entry
securitytracker.com / id/1037959
Third Party AdvisoryVDB Entry