HOMEVULNERABILITIESCVE-2020-7373
CRITICAL

CVE-2020-7373

CWE-94Published: October 30, 2020· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

vBulletin 5.5.4 through 5.6.2 allows remote command execution via crafted subWidgets data in an ajax/render/widget_tabbedcontainer_tab_panel request. NOTE: this issue exists because of an incomplete fix for CVE-2019-16759. ALSO NOTE: CVE-2020-7373 is a duplicate of CVE-2020-17496. CVE-2020-17496 is the preferred CVE ID to track this vulnerability.

NVD Source

Technical Analysis

CVE-2020-7373 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

vbulletin1 product(s)
vbulletin
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa/4445227-vbulletin-5-6-0-5-6-1-5-6-2-security-patch
PATCHhttps://github.com/rapid7/metasploit-framework/pull/13970
PATCHhttps://forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa/4445227-vbulletin-5-6-0-5-6-1-5-6-2-security-patch
PATCHhttps://github.com/rapid7/metasploit-framework/pull/13970
ADVISORYhttps://blog.exploitee.rs/2020/exploiting-vbulletin-a-tale-of-patch-fail/
ADVISORYhttps://seclists.org/fulldisclosure/2020/Aug/5
ADVISORYhttps://blog.exploitee.rs/2020/exploiting-vbulletin-a-tale-of-patch-fail/
ADVISORYhttps://seclists.org/fulldisclosure/2020/Aug/5

All References (8)

→
https://blog.exploitee.rs/2020/exploiting-vbulletin-a-tale-of-patch-fail/Exploit · Third Party Advisory
→
https://forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa/4445227-vbulletin-5-6-0-5-6-1-5-6-2-security-patchPatch · Vendor Advisory
→
https://github.com/rapid7/metasploit-framework/pull/13970Patch · Third Party Advisory
→
https://seclists.org/fulldisclosure/2020/Aug/5Exploit · Mailing List · Third Party Advisory
→
https://blog.exploitee.rs/2020/exploiting-vbulletin-a-tale-of-patch-fail/Exploit · Third Party Advisory
→
https://forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa/4445227-vbulletin-5-6-0-5-6-1-5-6-2-security-patchPatch · Vendor Advisory
→
https://github.com/rapid7/metasploit-framework/pull/13970Patch · Third Party Advisory
→
https://seclists.org/fulldisclosure/2020/Aug/5Exploit · Mailing List · Third Party Advisory

Quick Facts

CVE IDCVE-2020-7373
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-94
CISA KEVNo
Affected1 vendor(s)
PublishedOct 30, 2020

Related CVEs (CWE-94)

CVE-2024-50704
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CVE-2024-50707
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CVE-2024-21577
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CVE-2024-21576
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CVE-2024-21574
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CVE-2025-26936
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Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-7373 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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