Craft is a content management system (CMS). Prior to 4.17.3 and 5.9.7, Craft CMS has a CSRF issue in the preview token endpoint at /actions/preview/create-token. The endpoint accepts an attacker-supplied previewToken. Because the action does not require POST and does not enforce a CSRF token, an attacker can force a logged-in victim editor to mint a preview token chosen by the attacker. That token can then be used by the attacker (without authentication) to access previewed/unpublished content tied to the victim’s authorized preview scope. This vulnerability is fixed in 4.17.3 and 5.9.7.
CVE-2026-29113
This medium-severity CVE scores 4.3 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 93% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 4.3
- EG Score
- 4.3(medium)
- EG Risk
- 19(Track)EG Risk 19/100SSVC: 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 computedSeverity43% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 7%
- KEV
- Not listed
Published
March 10, 2026
Last Modified
September 2, 2026
Advisory Details (2)
Auto-updated Aug 6, 2026Potential information disclosure vulnerability in preview tokens · Advisory · craftcms/cms · GitHub
https://github.com/craftcms/cms/security/advisories/GHSA-vg3j-hpm9-8v5vcommit 6a88468dc35a (craftcms/cms)
Patch available: craftcms/cms 6.0.0-alpha.5 (contains commit 6a88468dc35a)
https://github.com/craftcms/cms/commit/6a88468dc35a27cccc8fef254f415a447d4a07ccVendor Advisories for CVE-2026-29113(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(1 across 1 ecosystem)
Packagist(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| craftcms/cms | 5.0.0 ... 5.9.6 (154 versions) | 5.9.7 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 6× in last 7d / 26× 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.
- 2026-09-18 19:28 UTCEPSS rescore
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- 2026-09-04 05:06 UTCEPSS rescore
- 2026-09-02 13:52 UTCEG score recompute
- 2026-08-30 19:17 UTCEPSS rescore
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- 2026-08-28 21:41 UTCEPSS rescore
- 2026-08-27 14:25 UTCEPSS rescore
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- 2026-08-20 22:55 UTCEPSS rescore
- 2026-08-19 17:03 UTCEPSS rescore
- 2026-08-18 13:48 UTCEPSS rescore
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- 2026-08-16 14:56 UTCEPSS rescore
- 2026-08-16 12:00 UTCEG score recompute
- 2026-08-16 02:14 UTCEPSS rescore
- 2026-08-15 01:30 UTCEPSS rescore
- 2026-08-14 07:57 UTCEG score recompute
- 2026-08-13 22:00 UTCEPSS rescore
- 2026-08-12 23:17 UTCEG score recompute
- 2026-08-12 13:50 UTCEPSS rescore
- 2026-08-11 21:56 UTCEG score recompute
- 2026-08-11 13:42 UTCEPSS rescore
- 2026-08-11 00:00 UTCEPSS rescore
- 2026-08-10 09:00 UTCEG score recompute
- 2026-08-09 13:46 UTCEPSS rescore
- 2026-08-09 07:38 UTCEG score recompute
- 2026-08-08 16:37 UTCEPSS rescore
- 2026-08-07 18:58 UTCEG score recompute
- 2026-08-06 13:46 UTCEPSS rescore
- 2026-08-06 02:08 UTCEG score recompute
- 2026-08-05 19:17 UTCEPSS rescore
- 2026-08-04 15:10 UTCEPSS rescore
- 2026-08-04 01:28 UTCEG score recompute
- 2026-08-03 10:36 UTCEPSS rescore
- 2026-08-02 17:49 UTCEG score recompute
- 2026-08-02 02:26 UTCEPSS rescore
- 2026-08-01 04:16 UTCEPSS rescore
- 2026-07-30 16:27 UTCEPSS rescore
- 2026-07-30 01:30 UTCEPSS rescore
- 2026-07-28 15:36 UTCEPSS rescore
- 2026-07-27 13:44 UTCEG score recompute
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2026-29113?
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Dependency Blast Radius
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