CVE-2026-85600

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-85600
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-85600.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-85600
Aliases
  • GHSA-96xm-c5hr-59rx
Published
2026-09-04T11:30:02Z
Modified
2026-09-07T03:30:46Z
Severity
  • 5.1 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N CVSS Calculator
Summary
Grav Admin before 2.0.21 Stored XSS via username
Details

Grav Admin (getgrav/grav-plugin-admin2) versions <= 2.0.19 contain a stored cross-site scripting vulnerability in the tHtml() function (src/lib/stores/i18n.svelte.ts), which substitutes untrusted parameters such as usernames into translation templates before parsing the result as markdown. Grav's server-side username validation (DataUser::isValidUsername) blocks filesystem-dangerous characters but not <, >, ", or ', allowing an attacker to register a username containing an HTML payload. When an administrator views a UI surface that renders the username through tHtml()—such as the two-factor force-disable confirmation prompt or the 'page is locked' editor notice—the payload executes in their authenticated session. Fixed in 2.0.21.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85600.json"
}
References

Affected packages

Git / github.com/getgrav/grav

Affected ranges

Type
GIT
Repo
https://github.com/getgrav/grav
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last Affected
25f37b9c0b1654935adfc737a9b6f44eb8c5947c
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "2.0.19"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

0.*
0.8.0
0.9.0
0.9.10
0.9.11
0.9.12
0.9.13
0.9.14
0.9.15
0.9.16
0.9.17
0.9.18
0.9.19
0.9.2
0.9.3
0.9.4
0.9.5
0.9.6
0.9.7
0.9.8
0.9.9
1.*
1.1.0-beta.1
1.1.0-beta.2
1.1.0-beta.3
1.1.0-beta.4
1.1.0-beta.5
1.1.0-rc.1
1.1.0-rc.2
1.1.0-rc.3
1.1.9-rc.1
1.1.9-rc.2
1.1.9-rc.3
1.2.0-rc.1
1.2.0-rc.2
1.2.0-rc.3
1.3.0-rc.1
1.3.0-rc.3
1.3.0-rc.4
1.3.0-rc.5
1.5.0-beta.1
1.5.0-beta.2
1.5.0-rc.1
1.6.0-beta.1
1.6.0-beta.2
1.6.0-beta.5
1.6.0-beta.6
1.6.0-beta.7
1.6.0-beta.8
1.6.0-rc.1
1.6.0-rc.2
1.6.0-rc.3
1.6.0-rc.4
1.7.0
1.7.0-beta.1
1.7.0-beta.10
1.7.0-beta.2
1.7.0-beta.3
1.7.0-beta.4
1.7.0-beta.5
1.7.0-beta.6
1.7.0-beta.7
1.7.0-beta.8
1.7.0-beta.9
1.7.0-rc.1
1.7.0-rc.10
1.7.0-rc.12
1.7.0-rc.13
1.7.0-rc.14
1.7.0-rc.15
1.7.0-rc.17
1.7.0-rc.18
1.7.0-rc.19
1.7.0-rc.2
1.7.0-rc.20
1.7.0-rc.3
1.7.0-rc.4
1.7.0-rc.5
1.7.0-rc.6
1.7.0-rc.7
1.7.0-rc.8
1.7.0-rc.9
1.7.1
1.7.10
1.7.12
1.7.13
1.7.14
1.7.15
1.7.16
1.7.17
1.7.18
1.7.19
1.7.20
1.7.21
1.7.22
1.7.23
1.7.24
1.7.25
1.7.26
1.7.26.1
1.7.27
1.7.27.1
1.7.28
1.7.29
1.7.29.1
1.7.3
1.7.30
1.7.31
1.7.32
1.7.33
1.7.34
1.7.35
1.7.36
1.7.37
1.7.37.1
1.7.38
1.7.39
1.7.39.1
1.7.4
1.7.5
1.7.51
1.7.52
1.7.53
1.7.6
1.7.7
1.7.8
1.7.9
2.*
2.0.1
2.0.10
2.0.11
2.0.12
2.0.13
2.0.14
2.0.15
2.0.16
2.0.17
2.0.18
2.0.19
2.0.2
2.0.3
2.0.4
2.0.5
2.0.6
2.0.7
2.0.8
2.0.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-85600.json"