CVE•Published 2023-12-20•Modified 2026-09-16•1 article on news•5 live references•NVD data
CVE-2023-27172Xpand-it · Write-back_manager
Vulnerability data via NVD (ingested)
CVSS v3.1
9.1
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS percentile
50
Exploit Prediction Scoring System · top 50% of all CVEs
Weaknesses (CWE)
Description
Xpand IT Write-back Manager v2.3.1 uses weak secret keys to sign JWT tokens. This allows attackers to easily obtain the secret key used to sign JWT tokens via a bruteforce attack.
Timeline
Published 2023-12-20
Modified 2026-09-16
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).
Shodan · vuln tag0 hosts
vuln:CVE-2023-27172Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product + version
product:"Xpand-it Write-back Manager" version:"2.3.1"Version-pinned fingerprint from NVD's first vulnerable CPE.
Shodan · banner/body mention
http.html:"Write-back Manager"HTTP body or banner mentions "Write-back Manager" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2023-27172Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2023-27172Censys host search filtered to this CVE id.
grep.app
CVE-2023-27172Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2023-27172GitHub code search for direct mentions.
Google dork
"CVE-2023-27172" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.