CVE•Published 2026-10-19•Modified 2026-10-19•0 articles on news•5 live references•NVD data
CVE-2026-91831
Vulnerability data via NVD (ingested)
CVSS v3.1
3.8
LOW
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
EPSS percentile
—
Weaknesses (CWE)
Description
The Subscribe to Comments WordPress plugin before 2.3.3 does not sanitise newline characters from a notification sender-name setting before using it in e-mail headers, allowing users with Author-level access and above to inject arbitrary e-mail headers, such as a hidden Bcc, and to spoof the sender.
Timeline
Published 2026-10-19
Modified 2026-10-19
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
More intel sources (5)
Shodan report
vuln:CVE-2026-91831Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-91831Censys host search filtered to this CVE id.
grep.app
CVE-2026-91831Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-91831GitHub code search for direct mentions.
Google dork
"CVE-2026-91831" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-91831 on GitHub.
We haven't classified any articles referencing CVE-2026-91831 yet. The external references above still apply.