How severe is CVE-2016-3735?

CVE-2016-3735 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-3735 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-3735?

CVE-2016-3735 affects Piwigo. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-3735?

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-2016-3735 published?

CVE-2016-3735 was published on 2022-01-28 and last updated on 2026-06-17.

CVE-2016-3735

CVE-2016-3735 is a high-severity vulnerability in Piwigo with a CVSS 3.x base score of 8.1. 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-335.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 6.8
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-335
Affected product: Piwigo
Published: 2022-01-28
Last modified: 2026-06-17

Description

Piwigo is image gallery software written in PHP. When a criteria is not met on a host, piwigo defaults to usingmt_rand in order to generate password reset tokens. mt_rand output can be predicted after recovering the seed used to generate it. This low an unauthenticated attacker to take over an account providing they know an administrators email address in order to be able to request password reset.

Frequently asked questions

What is CVE-2016-3735?: Piwigo is image gallery software written in PHP. When a criteria is not met on a host, piwigo defaults to usingmt_rand in order to generate password reset tokens. mt_rand output can be predicted after recovering the seed used to generate it. This low an unauthenticated attacker to take over an account providing they know an administrators email address in order to be able to request password reset.
How severe is CVE-2016-3735?: CVE-2016-3735 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-3735 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-3735?: CVE-2016-3735 affects Piwigo. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-3735?: 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-2016-3735 published?: CVE-2016-3735 was published on 2022-01-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:piwigo:piwigo:*:*:*:*:*:*:*:*

More vulnerabilities in Piwigo

CVE-2014-4648 — Critical (CVSS 10.0): Unspecified vulnerability in Piwigo before 2.6.3 has unknown impact and attack vectors, related to a "security failure."
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CVE-2020-19213 — Critical (CVSS 9.8): SQL Injection vulnerability in cat_move.php in piwigo v2.9.5, via the selection parameter to move_categories.
CVE-2021-32615 — Critical (CVSS 9.8): Piwigo 11.4.0 allows admin/user_list_backend.php order[0][dir] SQL Injection.

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