Vulnerability · CVE-2025-48828
vBulletin vBulletin Improper Protection of Alternate Path
Published May 26, 2025 · catalog updated May 27, 2025 · vBulletin vBulletin
Patch now
CVE-2025-48828 is in the CISA known-exploited catalog. Confirm vBulletin vBulletin against the vendor advisory and apply that fix. The CVSS score does not change the priority.
- Severity
- Critical9.0
- Known exploitation
- CISA KEV and VulnCheck KEV
- EPSS
- 57.64%
- Remediation
- Remediation guidance
- Affected products
- vendor vBulletin vBulletin · vendor vBulletin vBulletin 6.0.3
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. Initial-access exploit intelligence.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor vBulletin vBulletinversion unspecified
- vendor vBulletin vBulletin 6.0.36.0.3
How to fix CVE-2025-48828
Recommended remediation
Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
CVE-2025-48828 is in the CISA known-exploited catalog. Confirm vBulletin vBulletin against the vendor advisory and apply that fix. The CVSS score does not change the priority.
Which versions are affected?
Compare what you have installed with vBulletin vBulletin 6.0.3 6.0.3. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
What should an analyst verify?
No weakness class is stored. EPSS 57.64%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
May 26, 2025 · VulnCheck KEV
Detected
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. Initial-access exploit intelligence.
May 26, 2025 · CISA KEV
Known exploited
Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
May 27, 2025 · EUVD
Updated
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.
Sources
- CVE.orgVulnerability recordCVE-2025-48828
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2025-48828
30-day exploitation probability 57.6%
first.org - EUVDVulnerability recordEUVD-2025-28268
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
euvd.enisa.europa.eu - VulnCheck KEVConfirmed exploitationCVE-2025-48828
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
vulncheck.com
References
Freshness
Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.