HIGH
CVE-2019-17673
NVD-CWE-noinfoPublished: October 17, 2019· Updated: Jun 17, 2026
7.5
CVSS v3.1
Official Description
WordPress before 5.2.4 is vulnerable to poisoning of the cache of JSON GET requests because certain requests lack a Vary: Origin header.
Technical Analysis
CVE-2019-17673 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 7.5.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected Vendors & Products
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (16)
→
→
https://core.trac.wordpress.org/changeset/46478Patch · Vendor Advisory
→
https://github.com/WordPress/WordPress/commit/b224c251adfa16a5f84074a3c0886270c9df38dePatch · Third Party Advisory
→
https://seclists.org/bugtraq/2020/Jan/8Mailing List · Third Party Advisory
→
https://wordpress.org/news/2019/10/wordpress-5-2-4-security-release/Release Notes · Vendor Advisory
→
https://wpvulndb.com/vulnerabilities/9911Third Party Advisory
→
https://www.debian.org/security/2020/dsa-4599Third Party Advisory
→
https://www.debian.org/security/2020/dsa-4677Third Party Advisory
→
→
https://core.trac.wordpress.org/changeset/46478Patch · Vendor Advisory
→
https://github.com/WordPress/WordPress/commit/b224c251adfa16a5f84074a3c0886270c9df38dePatch · Third Party Advisory
→
https://seclists.org/bugtraq/2020/Jan/8Mailing List · Third Party Advisory
→
https://wordpress.org/news/2019/10/wordpress-5-2-4-security-release/Release Notes · Vendor Advisory
→
https://wpvulndb.com/vulnerabilities/9911Third Party Advisory
→
https://www.debian.org/security/2020/dsa-4599Third Party Advisory
Quick Facts
CVE IDCVE-2019-17673
CVSS Score7.5 / 10
SeverityHIGH
WeaknessNVD-CWE-noinfo
CISA KEVNo
Affected2 vendor(s)
PublishedOct 17, 2019
Related CVEs (NVD-CWE-noinfo)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2019-17673 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.