CVE-2026-73038

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Source
https://cve.org/CVERecord?id=CVE-2026-73038
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-73038.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-73038
Published
2026-08-13T18:41:49Z
Modified
2026-08-16T03:48:57Z
Severity
  • 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N CVSS Calculator
Summary
NodeBB < 4.15.0 Stored XSS via ActivityPub emoji tag.icon.url and tag.name
Details

NodeBB before 4.15.0 contains a stored cross-site scripting vulnerability in the renderEmoji function that fails to escape tag.icon.url and tag.name attributes. Attackers can deliver malicious ActivityPub Create/Note objects with crafted emoji tags to inject arbitrary HTML and JavaScript into stored post content, executing code in all viewers' browsers.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73038.json"
}
References

Affected packages

Git / github.com/nodebb/nodebb

Affected ranges

Type
GIT
Repo
https://github.com/nodebb/nodebb
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
fbdbb00d01e01a92baf64534a05fd13685cf3d88
Fixed
c0d94a217edcafcdb9b3920a6e80935194bcb19e
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "4.15.0"
        }
    ],
    "source": [
        "DESCRIPTION",
        "REFERENCES"
    ]
}

Affected versions

v0.*
v0.0.3
v0.0.6
v0.2.0
v0.3.0
v0.3.1
v0.3.2
v0.5.0-1
v0.5.0-2
v0.9.2
v1.*
v1.14.1-beta.0
v1.14.1-beta.1
v1.14.1-beta.3
v1.14.2-beta.1
v1.14.3-beta.0
v1.14.3-beta.10
v1.14.3-beta.11
v1.14.3-beta.12
v1.14.3-beta.13
v1.14.3-beta.14
v1.14.3-beta.15
v1.14.3-beta.16
v1.14.3-beta.4
v1.14.3-beta.5
v1.14.3-beta.6
v1.14.3-beta.7
v1.14.3-beta.8
v1.14.3-beta.9
v1.15.0
v1.15.0-beta.0
v1.15.0-beta.1
v1.15.0-beta.10
v1.15.0-beta.11
v1.15.0-beta.12
v1.15.0-beta.13
v1.15.0-beta.14
v1.15.0-beta.15
v1.15.0-beta.16
v1.15.0-beta.17
v1.15.0-beta.18
v1.15.0-beta.19
v1.15.0-beta.2
v1.15.0-beta.21
v1.15.0-beta.22
v1.15.0-beta.23
v1.15.0-beta.24
v1.15.0-beta.25
v1.15.0-beta.27
v1.15.0-beta.29
v1.15.0-beta.3
v1.15.0-beta.30
v1.15.0-beta.4
v1.15.0-beta.5
v1.15.0-beta.6
v1.15.0-beta.7
v1.15.0-beta.8
v1.15.0-beta.9
v1.15.0-rc.0
v1.15.0-rc.1
v1.15.0-rc.3
v1.15.0-rc.4
v1.15.0-rc.5
v1.15.1
v1.15.1-beta.0
v1.15.2-beta.0
v1.15.2-beta.1
v1.15.3-beta.0
v1.16.1-beta.0
v1.17.0-beta.0
v1.17.0-beta.2
v1.17.0-beta.3
v1.17.0-beta.4
v1.17.0-beta.5
v1.19.4
v1.19.6
v1.19.7
v1.5.3
v2.*
v2.0.1
v2.1.0
v2.1.1
v2.2.0
v2.2.1
v2.2.2
v2.2.3
v2.2.4
v2.2.5
v2.3.0
v2.3.1
v2.4.0
v3.*
v3.0.0-rc.1
v3.0.0-rc.2
v3.3.0
v3.5.0
v4.*
v4.0.0-alpha
v4.0.0-beta.3
v4.0.0-beta.4
v4.0.0-rc.1
v4.0.0-rc.3
v4.0.0-rc.4
v4.11.0
v4.12.0
v4.13.0
v4.14.0
v4.6.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-73038.json"