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CVE-2017-7569

27
FAUCET Score

CVE-2017-7569 is a Server-Side Request Forgery (SSRF) vulnerability affecting vBulletin versions prior to 5.3.0, allowing remote attackers to bypass a previous patch (CVE-2016-6483) by exploiting PHP's parse_url function. This vulnerability carries a high CVSS score of 8.6, indicating a critical risk due to its network-based attack vector, low attack complexity, and high impact on integrity without requiring user interaction or privileges. Despite its severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.2.6CPE matchmatch criteria
cpe:2.3:a:vbulletin:vbulletin:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.6HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
4.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.24%
Probability of exploitation in next 30 days
EPSS Percentile
66.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0124 is in the 45th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

vbulletin.com / forum/forum/vbulletin-announcements/vbulletin-announcements_aa/4367744-vbulletin-5-3-0-connect-is-now-available
Release NotesThird Party Advisory