CVE-2026-105090

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Source
https://cve.org/CVERecord?id=CVE-2026-105090
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-105090.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-105090
Published
2026-10-03T01:59:10Z
Modified
2026-10-04T02:46:40Z
Severity
  • 5.1 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N CVSS Calculator
Summary
[none]
Details

Formbricks before 5.4.4 and 6 before 6.0.1 allows stored XSS. The survey-level Custom Head Scripts feature did not enforce the documented Manage permission boundary. A workspace member holding only readWrite permission could configure Custom Head Scripts on a survey, an operation the documentation restricts to the Manage role. Because the configured scripts execute in the authenticated browser session of any user who opens the affected survey, a lower-privileged member can run arbitrary JavaScript (stored cross-site scripting) in the session of higher-privileged users. Fixed versions require Manage access to modify survey Custom Head Scripts.

Database specific 
{
    "cna_assigner":  "mitre",
    "cwe_ids":  [
        "CWE-863"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105090.json"
}
References

Affected packages

Git / github.com/formbricks/formbricks

Affected ranges

Type
GIT
Repo
https://github.com/formbricks/formbricks
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
c131ad1d5ead98797c1fda800dc1202ba600b76a
Introduced
ac7bf6f2104e37b7e0299ddaa5f752f04b3e59a3
Fixed
fd4afeef6a6fc8bfb8817458bb9a85bf4c268b5e
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "5.4.4"
        },
        {
            "introduced":  "6.0.0"
        },
        {
            "fixed":  "6.0.1"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

Affected versions

4.*
4.3.0
4.3.0-rc.1
4.4.0-rc.1
4.6.0-rc.1
4.7.0-rc.1
4.8.0
4.8.0-rc.1
4.8.0-rc.2
4.9.0-rc.1
5.*
5.0.0-rc.1
5.1.0-rc.1
5.1.3-beta
5.2.0-rc.1
5.3.0-rc.1
5.4.0
5.4.0-rc.1
5.4.0-rc.2
5.4.1
5.4.1-rc.1
5.4.1-rc.2
5.4.1-rc.3
5.4.1-rc.4
5.4.2
5.4.2-rc.1
5.4.3
6.*
6.0.0
6.0.0-rc.5
@formbricks/api@1.*
@formbricks/api@1.0.0
@formbricks/api@1.1.0
@formbricks/js@1.*
@formbricks/js@1.0.0
@formbricks/js@1.0.1
@formbricks/js@1.0.2
@formbricks/js@1.0.3
@formbricks/js@1.0.4
@formbricks/js@1.0.5
@formbricks/js@1.0.6
@formbricks/js@1.1.0
@formbricks/js@1.1.3
@formbricks/js@1.1.4
@formbricks/js@1.2.0
@formbricks/js@1.2.1
@formbricks/js@1.2.2
@formbricks/js@1.2.3
@formbricks/js@1.2.4
@formbricks/js@1.2.5
@formbricks/js@1.2.6
@formbricks/js@1.2.7
@formbricks/react@0.*
@formbricks/react@0.0.3
@formbricks/react@0.2.0
@formbricks/surveys@1.*
@formbricks/surveys@1.0.1
v0.*
v0.1.0
v0.10
v0.11
v0.12
v0.13
v0.14
v0.15
v0.2.0
v0.3.0
v0.4.0
v0.8
v1.*
v1.0
v1.0.1
v1.0.2
v1.0.3
v1.1.0
v1.1.1
v1.1.2
v1.2.0
v1.2.1
v1.2.2
v1.3.0
v1.3.1
v1.3.2
v1.3.3
v1.3.4
v1.3.5
v1.4.0
v1.4.1
v1.4.2
v1.5.0
v1.5.1
v1.6.0
v1.6.1
v2.*
v2.0.0
v2.0.1
v2.0.2
v2.0.3
v2.1.0
v2.1.1
v2.2
v2.2.1
v2.2.2
v2.3.0
v2.3.1
v2.3.2
v2.4.0
v2.4.2
v2.4.3
v2.5.0
v2.5.1
v2.5.2
v2.5.3
v2.6.0
v2.7.0
v2.7.1
v3.*
v3.0.0
v3.1.0
v3.1.1
v3.1.2
v3.1.3
v3.1.4
v3.1.5
v3.10.0
v3.10.1
v3.10.2
v3.10.3
v3.11.0
v3.12.0
v3.13.0
v3.13.1
v3.14.0
v3.17.0-rc.1
v3.2.0
v3.3.0
v3.3.1
v3.4.0
v3.4.1
v3.5.0
v3.5.1
v3.6.0
v3.6.1
v3.6.2
v3.7.0
v3.7.1
v3.8.0
v3.8.1
v3.8.2
v3.8.3
v3.8.4
v3.8.5
v3.8.6
v3.8.7
v3.9.0
v3.9.1
v3.9.2
v4.*
v4.5.0-rc.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-105090.json"