How severe is CVE-2015-3880?

CVE-2015-3880 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2015-3880 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-3880?

CVE-2015-3880 primarily affects Phpbb. In total, 23 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-3880?

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

When was CVE-2015-3880 published?

CVE-2015-3880 was published on 2017-09-19 and last updated on 2026-06-17.

CVE-2015-3880

CVE-2015-3880 is a medium-severity vulnerability in Phpbb with a CVSS 3.x base score of 6.1. 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-601.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 5.8
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-601
Affected product: Phpbb
Published: 2017-09-19
Last modified: 2026-06-17

Description

Open redirect vulnerability in phpBB before 3.0.14 and 3.1.x before 3.1.4 allows remote attackers to redirect users of Google Chrome to arbitrary web sites and conduct phishing attacks via unspecified vectors.

Frequently asked questions

What is CVE-2015-3880?: Open redirect vulnerability in phpBB before 3.0.14 and 3.1.x before 3.1.4 allows remote attackers to redirect users of Google Chrome to arbitrary web sites and conduct phishing attacks via unspecified vectors.
How severe is CVE-2015-3880?: CVE-2015-3880 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2015-3880 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-3880?: CVE-2015-3880 primarily affects Phpbb. In total, 23 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-3880?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-3880 published?: CVE-2015-3880 was published on 2017-09-19 and last updated on 2026-06-17.

References

Affected products (23)

cpe:2.3:a:phpbb:phpbb:*:rc1:*:*:*:*:*:*
cpe:2.3:a:phpbb:phpbb:3.1.0:*:*:*:*:*:*:*
cpe:2.3:a:phpbb:phpbb:3.1.0:a1:*:*:*:*:*:*
cpe:2.3:a:phpbb:phpbb:3.1.0:a2:*:*:*:*:*:*
cpe:2.3:a:phpbb:phpbb:3.1.0:a3:*:*:*:*:*:*
cpe:2.3:a:phpbb:phpbb:3.1.0:b1:*:*:*:*:*:*
cpe:2.3:a:phpbb:phpbb:3.1.0:b2:*:*:*:*:*:*
cpe:2.3:a:phpbb:phpbb:3.1.0:b3:*:*:*:*:*:*
cpe:2.3:a:phpbb:phpbb:3.1.0:b4:*:*:*:*:*:*
cpe:2.3:a:phpbb:phpbb:3.1.0:rc1:*:*:*:*:*:*
cpe:2.3:a:phpbb:phpbb:3.1.0:rc2:*:*:*:*:*:*
cpe:2.3:a:phpbb:phpbb:3.1.0:rc3:*:*:*:*:*:*
cpe:2.3:a:phpbb:phpbb:3.1.0:rc4:*:*:*:*:*:*
cpe:2.3:a:phpbb:phpbb:3.1.0:rc5:*:*:*:*:*:*
cpe:2.3:a:phpbb:phpbb:3.1.0:rc6:*:*:*:*:*:*
cpe:2.3:a:phpbb:phpbb:3.1.1:*:*:*:*:*:*:*
cpe:2.3:a:phpbb:phpbb:3.1.2:*:*:*:*:*:*:*
cpe:2.3:a:phpbb:phpbb:3.1.2:rc1:*:*:*:*:*:*
cpe:2.3:a:phpbb:phpbb:3.1.3:*:*:*:*:*:*:*
cpe:2.3:a:phpbb:phpbb:3.1.3:rc1:*:*:*:*:*:*
cpe:2.3:a:phpbb:phpbb:3.1.3:rc2:*:*:*:*:*:*
cpe:2.3:a:phpbb:phpbb:3.1.4:rc1:*:*:*:*:*:*
cpe:2.3:a:phpbb:phpbb:3.1.4:rc2:*:*:*:*:*:*

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