vBulletin 5.0.0 through 5.7.5 and 6.0.0 through 6.0.3 allows unauthenticated users to invoke protected API controllers' methods when running on PHP 8.1 or later, as demonstrated by the /api.php?method=protectedMethod pattern, as exploited in the wild in May 2025.
CVE-2025-48827
Score 10.0 from GitHub Security Advisory (severity: CRITICAL) published 2025-05-27. NVD baseline CVSS 10.0; sources differ by 0.0.
- High exploitation likelihood — EPSS 78%
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 10.0
- EG Score
- 10.0(medium)
- EG Risk
- —
- EPSS
- 99.5%
- KEV
- Not listed
Published
May 27, 2025
Last Modified
June 25, 2025
Advisory Details (2)
Auto-updated Jul 18, 2026CVE-2025-48827 Exploited in the Wild — vBulletin | KEVIntel
https://kevintel.com/CVE-2025-48827Don't Call That "Protected" Method: Dissecting an N-Day vBulletin RCE | Karma(In)Security
https://karmainsecurity.com/dont-call-that-protected-method-vbulletin-rceWeakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 7× in last 7d / 32× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-22 14:07 UTCEPSS rescore
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- 2026-07-21 15:24 UTCEPSS rescore
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- 2026-06-27 03:08 UTCEPSS rescore
- 2026-06-25 13:49 UTCEPSS rescore
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- 2026-06-22 14:25 UTCEPSS rescore
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- 2026-06-18 17:52 UTCEPSS rescore
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- 2026-06-08 14:16 UTCEPSS rescore
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- 2026-06-07 15:24 UTCEPSS rescore
- 2026-06-06 13:47 UTCEPSS rescore
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- 2026-06-05 22:46 UTCEPSS rescore
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- 2026-06-05 06:10 UTCEPSS rescore
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- 2026-06-02 20:12 UTCEPSS rescore
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- 2026-06-01 13:51 UTCEPSS rescore
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- 2026-05-31 22:30 UTCEPSS rescore
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- 2026-05-31 00:16 UTCEPSS rescore
- 2026-05-31 00:16 UTCEPSS rescore
- 2026-05-30 04:39 UTCEG score recompute
- 2026-05-30 04:39 UTCGHSA enrichment
- 2026-05-29 13:44 UTCEPSS rescore
Publicly available exploits
(3 references)Working exploit code is in the public domain (1 Metasploit module) (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- GitHub PoC0xgh057r3c0n/CVE-2025-48827First seen May 29, 2025
Critical Unauthenticated API Access in vBulletin
Open source ↗ - Metasploitexploit/multi/http/vbulletin_replace_ad_template_rce✓ verifiedFirst seen May 23, 2025
vBulletin replaceAdTemplate Remote Code Execution
Open source ↗ - Nucleihttp/cves/2025/CVE-2025-48827.yamlFirst seen Jan 1, 2025
vBulletin 5.0.0-6.0.3 - Authentication Bypass
Open source ↗
Frequently asked(5)
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Dependency Blast Radius
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