How severe is CVE-2020-7373?

CVE-2020-7373 has a CVSS score of 9.8/10, rated CRITICAL. Immediate patching is strongly recommended.

Which packages are affected by CVE-2020-7373?

Affected package information for CVE-2020-7373 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2020-7373?

No fixed version has been published for CVE-2020-7373 yet. Monitor the advisory for updates, apply mitigations recommended by the vendor, and use O3 Security to track when a fix becomes available in your stack.

Is CVE-2020-7373 actively exploited in the wild?

Yes. There are 4 known exploit references for CVE-2020-7373, including 4 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2020-7373?

CVE-2020-7373 has an EPSS (Exploit Prediction Scoring System) score of 90.3%, placing it in the 100th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

What type of vulnerability is CVE-2020-7373?

CVE-2020-7373 is classified as Code Injection (CWE-94). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

Which products and versions are affected by CVE-2020-7373?

CVE-2020-7373 affects vbulletin vbulletin. Check the affected-products list on this page against your deployed version to confirm exposure.

When was CVE-2020-7373 published, and has it been updated?

CVE-2020-7373 was published on October 30, 2020 and was last updated on November 21, 2024. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CVE-2020-7373

CRITICAL

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…

Published

Oct 30, 2020

Updated

Nov 21, 2024

Affected

0 pkgs

Patched

None yet

Exploits

4 known

EPSS Exploitation Probability

via FIRST.org ↗

90.3%probability of exploitation in next 30 days

Very High Risk100th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

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.

Affected Products

1 product · 1 configurations

Application

vbulletinvbulletin

≥ 5.5.4 && ≤ 5.6.2

range

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

vBulletin 5.5.4 through 5.6.2 allows remote command execution via crafte…

blog.exploitee.rsNVDJul 2021

vBulletin 5.5.4 through 5.6.2 allows remote command execution via crafte…

seclists.orgNVDJul 2021

vBulletin 5.5.4 through 5.6.2 allows remote command execution via crafte…

packetstormsecurity.comAPIAug 2020

vBulletin 5.5.4 through 5.6.2 allows remote command execution via crafte…

trustwave.comAPIAug 2020

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2020-7373 in your stack?

O3 detects CVE-2020-7373 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

Scan my stack How O3 SCA works

CVSS Score

9.8/10

CVSS v3 base score

Vector breakdown

AV:Attack Vector

Network

AC:Attack Complexity

Low

PR:Privileges Required

None

UI:User Interaction

None

S:Scope

Unchanged

C:Confidentiality

High

I:Integrity

High

A:Availability

High

Raw vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE Classification

CWE-94Code Injection

Weaponization

No known public exploit tooling found.

OpenSSF Scorecard

Package health score

metasploit-framework

4.6/10

Code-Review6/10

Maintained10/10

Branch-ProtectionN/A

Assessed Jun 1, 2026

Timeline

Disclosed

Oct 30, 2020

First exploit

Jul 21, 2021

Last updated

Nov 21, 2024

Identifiers

CVE-2020-7373

References

Fixforum.vbulletin.com Fixgithub.com Fixforum.vbulletin.com Fixgithub.com Exploit / PoCblog.exploitee.rs Exploit / PoCseclists.org Exploit / PoCblog.exploitee.rs Exploit / PoCseclists.org

Data from OSV.dev, enriched by O3 Security. Refreshed hourly.