How severe is CVE-2015-3419?

CVE-2015-3419 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2015-3419 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-3419?

CVE-2015-3419 primarily affects Vbulletin. In total, 23 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-3419?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2015-3419 published?

CVE-2015-3419 was published on 2017-09-19 and last updated on 2026-06-17.

CVE-2015-3419

CVE-2015-3419 is a medium-severity vulnerability in Vbulletin with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Vbulletin
Published: 2017-09-19
Last modified: 2026-06-17

Description

vBulletin 5.x through 5.1.6 allows remote authenticated users to bypass authorization checks and inject private messages into conversations via vectors related to an input validation failure.

Frequently asked questions

What is CVE-2015-3419?: vBulletin 5.x through 5.1.6 allows remote authenticated users to bypass authorization checks and inject private messages into conversations via vectors related to an input validation failure.
How severe is CVE-2015-3419?: CVE-2015-3419 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2015-3419 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-3419?: CVE-2015-3419 primarily affects Vbulletin. In total, 23 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-3419?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-3419 published?: CVE-2015-3419 was published on 2017-09-19 and last updated on 2026-06-17.

References

Affected products (23)

cpe:2.3:a:vbulletin:vbulletin:5.0.0:beta_11:*:*:*:*:*:*
cpe:2.3:a:vbulletin:vbulletin:5.0.0:beta_28:*:*:*:*:*:*
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: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:5.1.3:rc1:*:*:*:*:*:*
cpe:2.3:a:vbulletin:vbulletin:5.1.4:*:*:*:*:*:*:*
cpe:2.3:a:vbulletin:vbulletin:5.1.4:rc1:*:*:*:*:*:*
cpe:2.3:a:vbulletin:vbulletin:5.1.5:*:*:*:*:*:*:*
cpe:2.3:a:vbulletin:vbulletin:5.1.5:beta_1:*:*:*:*:*:*
cpe:2.3:a:vbulletin:vbulletin:5.1.5:beta_3:*:*:*:*:*:*
cpe:2.3:a:vbulletin:vbulletin:5.1.6:*:*:*:*:*:*:*
cpe:2.3:a:vbulletin:vbulletin:5.1.6:beta_2:*:*:*:*:*:*

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