How severe is CVE-2015-7808?

CVE-2015-7808 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2015-7808 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 81% (100th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-7808?

CVE-2015-7808 primarily affects Vbulletin. In total, 21 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-7808?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2015-7808 published?

CVE-2015-7808 was published on 2015-11-24 and last updated on 2026-06-17.

CVE-2015-7808

CVE-2015-7808 is a high-severity vulnerability in Vbulletin with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 81% places it in the 100th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-20.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 81% (100th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Vbulletin
Published: 2015-11-24
Last modified: 2026-06-17

Description

The vB_Api_Hook::decodeArguments method in vBulletin 5 Connect 5.1.2 through 5.1.9 allows remote attackers to conduct PHP object injection attacks and execute arbitrary PHP code via a crafted serialized object in the arguments parameter to ajax/api/hook/decodeArguments.

Frequently asked questions

What is CVE-2015-7808?: The vB_Api_Hook::decodeArguments method in vBulletin 5 Connect 5.1.2 through 5.1.9 allows remote attackers to conduct PHP object injection attacks and execute arbitrary PHP code via a crafted serialized object in the arguments parameter to ajax/api/hook/decodeArguments.
How severe is CVE-2015-7808?: CVE-2015-7808 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2015-7808 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 81% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-7808?: CVE-2015-7808 primarily affects Vbulletin. In total, 21 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-7808?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2015-7808 published?: CVE-2015-7808 was published on 2015-11-24 and last updated on 2026-06-17.

References

Affected products (21)

cpe:2.3:a:vbulletin:vbulletin:5.0.0:*:*:*:*:*:*:*
cpe:2.3:a:vbulletin:vbulletin:5.0.1:*:*:*:*:*:*:*
cpe:2.3:a:vbulletin:vbulletin:5.0.2:*:*:*:*:*:*:*
cpe:2.3:a:vbulletin:vbulletin:5.0.3:*:*:*:*:*:*:*
cpe:2.3:a:vbulletin:vbulletin:5.0.4:*:*:*:*:*:*:*
cpe:2.3:a:vbulletin:vbulletin:5.0.5:*:*:*:*:*:*:*
cpe:2.3:a:vbulletin:vbulletin:5.1.0:*:*:*:*:*:*:*
cpe:2.3:a:vbulletin:vbulletin:5.1.0:rc1:*:*:*:*:*:*
cpe:2.3:a:vbulletin:vbulletin:5.1.1:*:*:*:*:*:*:*
cpe:2.3:a:vbulletin:vbulletin:5.1.2:*:*:*:*:*:*:*
cpe:2.3:a:vbulletin:vbulletin:5.1.2:beta1:*:*:*:*:*:*
cpe:2.3:a:vbulletin:vbulletin:5.1.2:rc1:*:*:*:*:*:*
cpe:2.3:a:vbulletin:vbulletin:5.1.2:rc2:*:*:*:*:*:*
cpe:2.3:a:vbulletin:vbulletin:5.1.3:*:*:*:*:*:*:*
cpe:2.3:a:vbulletin:vbulletin:5.1.3:alpha5:*:*:*:*:*:*
cpe:2.3:a:vbulletin:vbulletin:5.1.4:*:*:*:*:*:*:*
cpe:2.3:a:vbulletin:vbulletin:5.1.5:*:*:*:*:*:*:*
cpe:2.3:a:vbulletin:vbulletin:5.1.6:*:*:*:*:*:*:*
cpe:2.3:a:vbulletin:vbulletin:5.1.7:*:*:*:*:*:*:*
cpe:2.3:a:vbulletin:vbulletin:5.1.8:*:*:*:*:*:*:*
cpe:2.3:a:vbulletin:vbulletin:5.1.9:*:*:*:*:*:*:*

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