How severe is CVE-2025-70810?

CVE-2025-70810 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-70810 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-70810?

CVE-2025-70810 affects Phpbb. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-70810?

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.

Does CVE-2025-70810 have an EU (EUVD) identifier?

Yes. CVE-2025-70810 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209383.

When was CVE-2025-70810 published?

CVE-2025-70810 was published on 2026-04-09 and last updated on 2026-06-17.

CVE-2025-70810

CVE-2025-70810 is a high-severity vulnerability in Phpbb with a CVSS 3.x base score of 8.8. 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-352.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-209383
Weakness: CWE-352
Affected product: Phpbb
Published: 2026-04-09
Last modified: 2026-06-17

Description

Cross Site Request Forgery vulnerability in Phpbb phbb3 v.3.3.15 allows a local attacker to execute arbitrary code via the login function and the authentication mechanism

Frequently asked questions

What is CVE-2025-70810?: Cross Site Request Forgery vulnerability in Phpbb phbb3 v.3.3.15 allows a local attacker to execute arbitrary code via the login function and the authentication mechanism
How severe is CVE-2025-70810?: CVE-2025-70810 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-70810 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-70810?: CVE-2025-70810 affects Phpbb. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-70810?: 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.
Does CVE-2025-70810 have an EU (EUVD) identifier?: Yes. CVE-2025-70810 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209383.
When was CVE-2025-70810 published?: CVE-2025-70810 was published on 2026-04-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:phpbb:phpbb:3.3.15:-:*:*:*:*:*:*

More vulnerabilities in Phpbb

CVE-2008-3224 — Critical (CVSS 10.0): Unspecified vulnerability in phpBB before 3.0.1 has unknown impact and attack vectors related to "urls gone through…
CVE-2008-1766 — Critical (CVSS 10.0): Multiple unspecified vulnerabilities in phpBB before 3.0.1 have unknown impact and attack vectors, related to "two…
CVE-2019-16993 — High (CVSS 8.8): In phpBB before 3.1.7-PL1, includes/acp/acp_bbcodes.php has improper verification of a CSRF token on the BBCode page in…
CVE-2001-1471 — High (CVSS 8.8): prefs.php in phpBB 1.4.0 and earlier allows remote authenticated users to execute arbitrary PHP code via an invalid…
CVE-2026-29199 — High (CVSS 8.1): phpBB before 3.3.16 is vulnerable to Host Header Injection that can lead to password rest link poisoning. When…
CVE-2019-16108 — High (CVSS 7.5): phpBB 3.2.7 allows adding an arbitrary Cascading Style Sheets (CSS) token sequence to a page through BBCode.

All CVEs affecting Phpbb →

Other CWE-352 (Cross-Site Request Forgery (CSRF)) vulnerabilities

CVE-2025-32642 — Critical (CVSS 10.0): Cross-Site Request Forgery (CSRF) vulnerability in appsbd Vite Coupon vite-coupon allows Remote Code Inclusion.This…
CVE-2025-23922 — Critical (CVSS 10.0): Cross-Site Request Forgery (CSRF) vulnerability in Harsh iSpring Embedder embed-ispring allows Upload a Web Shell to a…
CVE-2017-5145 — Critical (CVSS 10.0): An issue was discovered in Carlo Gavazzi VMU-C EM prior to firmware Version A11_U05, and VMU-C PV prior to firmware…
CVE-2019-25729 — Critical (CVSS 9.8): PDF Signer 3.0 contains a server-side template injection vulnerability that allows unauthenticated attackers to execute…
CVE-2025-48340 — Critical (CVSS 9.8): Cross-Site Request Forgery (CSRF) vulnerability in Danny Vink User Profile Meta Manager user-profile-meta allows…
CVE-2025-2907 — Critical (CVSS 9.8): The Order Delivery Date WordPress plugin before 12.3.1 does not have authorization and CSRF checks when importing…

Browse all CWE-352 (Cross-Site Request Forgery (CSRF)) vulnerabilities →