PHP
Web69%of websites
Among websites whose server-side programming language we know.
W3Techs ↗ · as of 2 Nov 2026 · Medium confidence
Version split · W3Techs · as of 2 Nov 2026
CVE-2025-48828
Public exploit available. Not confirmed exploited in the wild yet. A vendor fix is available.
CVSS 3.19.0CriticalEPSS percentile99th57% chance in 30 daysCISA KEVNot listedNo confirmed exploitation
Public exploit: 1 sourceFixVendor fixNo build named by the sources
Public exploit: 1 sourceFixVendor fixNo build named by the sources
Check it yourself
Run the check e.g. vBulletin replaceAdTemplate - Remote Code Execution · OID 1.3.6.1.4.1.25623.1.0.119020
What to do
The vendor has published a fix. Version details are below where the sources state them.
- vBulletinAffected: 6.0.3Upgrade to: not statedStated by: CVE record
- PHP Group PHPAffected: 8.1Upgrade to: not statedStated by: BDU
Versions as the sources state them. Full version matrix after sign-in
What it is
From the CVE record
Certain vBulletin versions might allow attackers to execute arbitrary PHP code by abusing Template Conditionals in the template engine. By crafting template code in an alternative PHP function invocation syntax, such as the "var_dump"("test") syntax, attackers can bypass security checks and execute arbitrary PHP code, as exploited in the wild in May 2025.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
EPSS99th
Public exploit
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
1 source with a proof of concept or module.
Exploit links, PoCs and Metasploit modules after sign-in- EPSS
57% chance of exploitation activity in the next 30 days, which ranks it in the 99th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
The patch came 254 days before any public exploit.
- Analysis publishedvBulletin's Third Template-Engine RCE in 14 Months Now Has a Public Exploit — EPSS Already Says 70%
- EPSS band changemoderate → highepss band change
- OpenVAS check added
- EPSS band changehigh → moderate
- Public exploit / PoCsource: other
- Nuclei check added
Affected products
And 1 more affected product. See all after sign-in
Scale
How widely the affected products are used. This is not a count of vulnerable hosts.
Estimate Public sources, each figure dated. How much of it is already patched is not known.
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Scored 9.0 by NVD.
How it is reached
- Attack Vector NetworkExploitable remotely over the network without any special conditions
- Attack Complexity HighRequires specific conditions like a race condition or non-default configuration
- Privileges Required NoneNo authentication required — anyone can exploit this
- User Interaction NoneNo user interaction needed — fully automated exploitation
Scope
- Scope ChangedThe exploit can affect other components (e.g. sandbox escape, host compromise from VM)
Impact if exploited
- Confidentiality HighTotal information disclosure — all data in the component is compromised
- Integrity HighTotal loss of integrity — attacker can modify any data in the component
- Availability HighTotal denial of service — the component is completely unavailable
Weaknesses
Sources
References in the record
Analysis on the cve.tools blog
In the news
Watch the software you run.
My Stack ranks new CVEs for your products by real-world exploitation, so the next serious one reaches you without reading every advisory.
We'll flag the next CVE, public exploit or patch for vBulletin, not every advisory. This one: public exploit.
A free account adds
- The full version matrix and every affected product
- Exploit links, proofs of concept and Metasploit modules
- Email alerts for the products you watch
- The same data over REST API, MCP and CLI