CVE-2023-25135

criticalpriority · attend · 47EPSS 0.239 · 98 %ileDEEURUUS

grimoire priorityP1 · Urgent

Exploitable?

—

no known exploitation

Likely / severe?

23.9% (98th) EPSS

CVSS 9.8 · critical

Is it mine?

7 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

vBulletin before 5.6.9 PL1 allows an unauthenticated remote attacker to execute arbitrary code via a crafted HTTP request that triggers deserialization. This occurs because verify_serialized checks that a value is serialized by calling unserialize and then checking for errors. The fixed versions are 5.6.7 PL1, 5.6.8 PL1, and 5.6.9 PL1.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 3.9 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: poc · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-502USprimaryCWE-502US

affected products (7)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
vBulletin vBulletin≤ 5.6.7fstec_bduRU
vBulletin vBulletin≤ 5.6.8fstec_bduRU
vBulletin vBulletin≤ 5.6.9fstec_bduRU
vbulletin vbulletin= 5.6.7nvdUScpe:2.3:a:vbulletin:vbulletin:*:*:*:*:*:*:*:*
vbulletin vbulletin= 5.6.8nvdUScpe:2.3:a:vbulletin:vbulletin:*:*:*:*:*:*:*:*
vbulletin vbulletin= 5.6.9nvdUScpe:2.3:a:vbulletin:vbulletin:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-0288vBulletin Connect: Schwachstelle ermöglicht Ausführen von beliebigem Programmcode mit den Rechten des DienstesDeutsch2023-02-05csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in vBulletin Connect ausnutzen, um beliebigen Programmcode mit den Rechten des Dienstes auszuführen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd cert_bund NVD CVE.org MITRE

published 2023-02-03modified 2026-06-17

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+3741 more

references (7)

External citations — patches, advisories, analysis.

scry

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