CVE-2026-48958

highpriority · track · 35EPSS 0.005 · 40 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.46% (40th) EPSS

CVSS 8.8 · high

Is it mine?

10 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

An improper access check allows unauthorized users to create custom fields via webservices endpoints.

cvss

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

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–high · 2.5–8.8

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9

v4.06.4mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA:Hsecondary · ENISA EU

v4.06.4mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · security@joomla.org

v4.02.5lowCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA:H/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)

ssvc

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

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-284USprimary

affected products (10)

Products and version ranges known to be affected.

Open Source Joomla <5.4.7all versionscert_bundDE
Open Source Joomla <6.1.2all versionscert_bundDE
Open Source Joomla< 5.4.7cert_bundDE
Open Source Joomla< 6.1.2cert_bundDE
Joomla! Project Joomla! CMS≤ 6.0.0-6.1.1enisa_euvdEU
Joomla! Project Joomla! CMS≤ 4.0.0-5.4.6enisa_euvdEU
joomla joomla!4.0.0 → 5.4.7nvdUScpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*
joomla joomla!6.0.0 → 6.1.2nvdUScpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*
Bitnami joomla4.0.0 → 5.4.7osvUSpkg:bitnami/joomla
Bitnami joomla6.0.0 → 6.1.2osvUSpkg:bitnami/joomla

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-2238Joomla: Mehrere SchwachstellenDeutsch2026-07-07csaf · cert_bundDE
Ein entfernter Angreifer kann mehrere Schwachstellen in Joomla ausnutzen, um einen Cross-Site Scripting Angriff durchzuführen und um Sicherheitsmechanismen zu umgehen.
BIT-joomla-2026-48958Joomla! Core - [20260712] - Incorrect Access Control in com_fields webservice endpoints2026-07-12vendor · osvUS
An improper access check allows unauthorized users to create custom fields via webservices endpoints.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd osv NVD CVE.org MITRE

published 2026-07-07modified 2026-10-25

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+13830 more

references (3)

External citations — patches, advisories, analysis.

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