Vulnerability · CVE-2026-112868

WordPress H5P plugin <= 1.17.9 - Insecure Direct Object References (IDOR) vulnerability

Q: Should you patch?

No confirmed exploitation is on record for CVE-2026-112868. EPSS is 0.27%. Act only if a listed version of H5P H5P is installed.

Q: Which versions are affected?

Compare what you have installed with H5P <= 1.17.9. Compare the installed version with the linked vendor advisory before you change production.

Q: What should an analyst verify?

CWE-639: Authorization Bypass Through User-Controlled Key. EPSS 0.27%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Published Oct 21, 2026 · catalog updated Oct 22, 2026 · H5P H5P

Last checked Oct 31, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-112868. EPSS is 0.27%. Act only if a listed version of H5P H5P is installed.

Gaps on this record

No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

CVE-2025-68505 · Medium
CVE-2025-62951 · Medium

Severity: Medium4.3
Known exploitation: Not in CISA/VulnCheck KEV
EPSS: 0.27%
Remediation: Version ranges on file
Affected products: stated H5P · vendor H5P H5P

Authorization Bypass Through User-Controlled Key vulnerability in H5P H5P h5p allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects H5P: from n/a through 1.17.9.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

stated H5P<= 1.17.9
vendor H5P H5Pversion unspecified

How to fix CVE-2026-112868

Upgrade
CVE-2026-112868 lists a fix boundary at 1.17.9. Compare the installed build with that boundary before you change production.
Version check
Affected <= 1.17.9
Advisory
Open the cve_org record and follow its fix.
Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-112868. EPSS is 0.27%. Act only if a listed version of H5P H5P is installed.

Which versions are affected?

Compare what you have installed with H5P <= 1.17.9. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-639: Authorization Bypass Through User-Controlled Key. EPSS 0.27%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

WordPress security

Code

The project this record applies to. Exploit listings stay in References.

Plugin source · wordpress.org

Timeline

Detection, updates, and resolution for this record.

Oct 21, 2026 · CIRCL Vulnerability Lookup
Detected
Authorization Bypass Through User-Controlled Key vulnerability in H5P H5P h5p allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects H5P: from n/a through 1.17.9.
Oct 21, 2026 · CIRCL Vulnerability Lookup
Updated
Authorization Bypass Through User-Controlled Key vulnerability in H5P H5P h5p allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects H5P: from n/a through 1.17.9.
Oct 22, 2026 · NIST NVD
Updated
Authorization Bypass Through User-Controlled Key vulnerability in H5P H5P h5p allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects H5P: from n/a through 1.17.9.

Sources

CIRCL Vulnerability LookupVulnerability recordCVE-2026-112868
Authorization Bypass Through User-Controlled Key vulnerability in H5P H5P h5p allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects H5P: from n/a through 1.17.9.
vulnerability.circl.lu
CVE.orgVulnerability recordCVE-2026-112868
Authorization Bypass Through User-Controlled Key vulnerability in H5P H5P h5p allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects H5P: from n/a through 1.17.9.
cve.org
FIRST EPSSExploitation probabilityCVE-2026-112868
30-day exploitation probability 0.27%
first.org
NIST NVDVulnerability recordCVE-2026-112868
Authorization Bypass Through User-Controlled Key vulnerability in H5P H5P h5p allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects H5P: from n/a through 1.17.9.
nvd.nist.gov

References

Reference · patchstack.com

Freshness

Last verified in this catalog Oct 31, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

FIRST EPSSOct 31, 2026
NIST NVDOct 22, 2026
CVE.orgOct 21, 2026
CIRCL Vulnerability LookupOct 21, 2026

Priority score

22/100

Evidence confidence: High

Several independent sources name this vulnerability.

Confirmed exploitation0/30
EPSS probability1/20
CVSS severity6/15
Public exploit0/10
Internet exposure10/10
Product prevalence5/5
Detection0/5
Threat research0/5

Decision signals

Four separate signals — do not infer one from another.

Medium

CVSS severity
4.3 v3.1
Technical impact. Separate from exploitation likelihood.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
EPSS probability
0.27% · p19.62%
Estimated probability of exploitation within 30 days (FIRST).
Known exploitation
No verified KEV listing
Evidence from CISA KEV or VulnCheck KEV only — not from EPSS alone.
Patch availability
Version ranges on file
Affected version ranges suggest a fixed boundary. Verify against the vendor advisory for your release.

Stacks

WordPress

Weakness

CWE-639
Authorization Bypass Through User-Controlled Key
MITRE definition

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