CVE-2026-73038Disclosure

LOWCVSS 5.3 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

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.

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0.0/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-79

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

1 mentions across 1 observed day

What's happening

Technical details provided in 1 signal
Disclosure: 1 classified signal
1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Disclosure

1100.0%

Referenced assets2 URLs

By indicator

Full discourse1 post

Vulmon Vulnerability Feed@VulmonFeeds46d
Disclosure
CVE-2026-73038 Stored XSS in NodeBB Before 4.15.0 via Crafted Emoji Tags https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-73038 Vulnerability Alert Subscriptions: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=1
Post summary
A stored XSS vulnerability in NodeBB versions prior to 4.15.0 was disclosed, triggered by crafted emoji tags, with no evidence of active exploitation, PoC, or patch information provided.
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