The register_routes function in wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php in the REST API in WordPress 4.7.x before 4.7.2 does not require an integer identifier, which allows remote attackers to modify arbitrary pages via a request for wp-json/wp/v2/posts followed by a numeric value and a non-numeric value, as demonstrated by the wp-json/wp/v2/posts/123?id=123helloworld URI.
CVE-2017-1001000
Score elevated to 8.9 because EPSS predicts 82% probability of exploitation within the next 30 days (top 0.4% of all CVEs). NVD baseline CVSS 7.5 retained for reference. Confidence: see factors.
- High exploitation likelihood — EPSS 85%
- Public exploit code is available (Metasploit, epss top5pct, epss high, public exploit)
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 8.9(high)
- EG Risk
- 77(Track)EG Risk 77/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity89% × 45%Exploitation82% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 85%
- EPSS %ILE
- 100%
- KEV
- Not listed
Published
April 3, 2017
Last Modified
June 17, 2026
References (18)
- 46fe6300-5254-4a98-9594-a9567bec8179http://www.openwall.com/lists/oss-security/2017/02/10/16
- 46fe6300-5254-4a98-9594-a9567bec8179http://www.securitytracker.com/id/1037731
- 46fe6300-5254-4a98-9594-a9567bec8179https://blog.sucuri.net/2017/02/content-injection-vulnerability-wordpress-rest-api.html
- 46fe6300-5254-4a98-9594-a9567bec8179https://blogs.akamai.com/2017/02/wordpress-web-api-vulnerability.html
- 46fe6300-5254-4a98-9594-a9567bec8179https://codex.wordpress.org/Version_4.7.2
- 46fe6300-5254-4a98-9594-a9567bec8179https://gist.github.com/leonjza/2244eb15510a0687ed93160c623762ab
- 46fe6300-5254-4a98-9594-a9567bec8179https://github.com/WordPress/WordPress/commit/e357195ce303017d517aff944644a7a1232926f7
- 46fe6300-5254-4a98-9594-a9567bec8179https://make.wordpress.org/core/2017/02/01/disclosure-of-additional-security-fix-in-wordpress-4-7-2/
- 46fe6300-5254-4a98-9594-a9567bec8179https://wordpress.org/news/2017/01/wordpress-4-7-2-security-release/
- af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2017/02/10/16
- af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1037731
- af854a3a-2127-422b-91ae-364da2661108https://blog.sucuri.net/2017/02/content-injection-vulnerability-wordpress-rest-api.html
- af854a3a-2127-422b-91ae-364da2661108https://blogs.akamai.com/2017/02/wordpress-web-api-vulnerability.html
- af854a3a-2127-422b-91ae-364da2661108https://codex.wordpress.org/Version_4.7.2
- af854a3a-2127-422b-91ae-364da2661108https://gist.github.com/leonjza/2244eb15510a0687ed93160c623762ab
Affected Packages
(4 across 4 ecosystems)
Debian:11(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| wordpress | — | 4.7.2+dfsg-1 | — |
Debian:12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| wordpress | — | 4.7.2+dfsg-1 | — |
Debian:13(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| wordpress | — | 4.7.2+dfsg-1 | — |
Debian:14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| wordpress | — | 4.7.2+dfsg-1 | — |
Data Freshness Timeline
(refreshed 4× in last 7d / 12× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-08-19 16:59 UTCEPSS rescore
- 2026-08-18 13:43 UTCEPSS rescore
- 2026-08-16 14:51 UTCEPSS rescore
- 2026-08-16 02:10 UTCEPSS rescore
- 2026-08-15 01:25 UTCEPSS rescore
- 2026-08-14 03:49 UTCOSV refresh
- 2026-08-12 13:46 UTCEPSS rescore
- 2026-08-04 15:05 UTCEPSS rescore
- 2026-07-29 08:33 UTCOSV refresh
- 2026-07-26 14:50 UTCEPSS rescore
- 2026-07-24 14:13 UTCEPSS rescore
- 2026-07-23 14:15 UTCEPSS rescore
- 2026-07-23 01:25 UTCEG score recompute▲ 1.40
- 2026-07-22 22:04 UTCEG score recompute
- 2026-07-22 14:04 UTCEPSS rescore
- 2026-07-21 15:21 UTCEPSS rescore
- 2026-07-21 15:21 UTCEPSS rescore
- 2026-07-20 17:04 UTCEPSS rescore
- 2026-07-19 02:26 UTCEPSS rescore
- 2026-07-19 02:26 UTCEPSS rescore
- 2026-07-15 16:54 UTCEPSS rescore
- 2026-07-15 16:54 UTCEPSS rescore
- 2026-07-15 01:56 UTCEPSS rescore
- 2026-07-12 01:11 UTCOSV refresh
- 2026-07-11 08:24 UTCEPSS rescore
Show 41 moreShow fewer
- 2026-07-09 19:06 UTCEPSS rescore
- 2026-07-04 06:28 UTCEPSS rescore
- 2026-07-01 15:02 UTCEPSS rescore
- 2026-06-25 13:47 UTCEPSS rescore
- 2026-06-24 14:02 UTCEPSS rescore
- 2026-06-23 21:30 UTCEPSS rescore
- 2026-06-23 07:30 UTCOSV refresh
- 2026-06-21 01:57 UTCEPSS rescore
- 2026-06-21 01:57 UTCEPSS rescore
- 2026-06-17 17:50 UTCEPSS rescore
- 2026-06-17 17:50 UTCEPSS rescore
- 2026-06-15 17:45 UTCEPSS rescore
- 2026-06-12 23:09 UTCEPSS rescore
- 2026-06-07 15:22 UTCEPSS rescore
- 2026-06-07 15:22 UTCEPSS rescore
- 2026-06-06 13:45 UTCEPSS rescore
- 2026-06-06 13:45 UTCEPSS rescore
- 2026-06-06 06:30 UTCOSV refresh
- 2026-06-05 06:08 UTCEPSS rescore
- 2026-06-05 06:08 UTCEPSS rescore
- 2026-06-04 13:10 UTCEPSS rescore
- 2026-06-04 13:10 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-31 00:14 UTCEPSS rescore
- 2026-05-29 13:41 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-22 14:43 UTCEG score recompute
- 2026-05-22 14:42 UTCGHSA enrichment
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-20 11:21 UTCEPSS rescore
- 2026-05-20 11:21 UTCEPSS rescore
- 2026-05-18 21:30 UTCEPSS rescore
- 2026-05-18 21:30 UTCEPSS rescore
- 2026-05-18 21:30 UTCEPSS rescore
Publicly available exploits
(1 reference)Working exploit code is in the public domain (1 Metasploit module). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Metasploitauxiliary/scanner/http/wordpress_content_injection✓ verifiedFirst seen Feb 1, 2017
WordPress REST API Content Injection
Open source ↗
Frequently asked(5)
What is CVE-2017-1001000?
When was CVE-2017-1001000 disclosed?
Is CVE-2017-1001000 actively exploited?
What is the CVSS score of CVE-2017-1001000?
How do I remediate CVE-2017-1001000?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2017-1001000
Is Your Infrastructure Affected by CVE-2017-1001000?
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