CVE-2026-107636

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory (severity: HIGH) published 2026-10-08. A secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 6.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

pH7Builder (pH7 Social Dating CMS) before 18.5.1 contains a payment validation vulnerability that allows registered low-privileged members to obtain any membership tier by supplying client-controlled plan and amount fields. Attackers can set item_number, cart_order_id, or the PayPal custom field while paying a token amount, or submit uncompleted PayPal IPN payments, to gain the most expensive membership and its paid features.

CVSS v3
6.5
EG Score
6.5MEDIUMhigh confidence
EG Risk
29
EG Risk 29/100CISA SSVC

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 computed
Severity65% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
22nd
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

October 8, 2026

Last Modified

October 8, 2026

Advisory Details (4)

Auto-updated Oct 8, 2026
Patch available. Sources: github_commit.
generic

pH7Builder before 18.5.1 Payment Bypass via Payment Module MainController | Advisories | VulnCheck

https://www.vulncheck.com/advisories/ph7builder-before-18.5.1-payment-bypass-via-payment-module-maincontroller
generic

GitHub - pH7Software/pH7-Social-Dating-CMS: Self-hosted, open-source PHP 8.2+ software for building white-label dating sites, matchmaking communities, and social networks. Own your code, hosting, database, and member data. · GitHub

https://github.com/pH7Software/pH7-Social-Dating-CMS
generic

pH7-Social-Dating-CMS/_protected/app/system/modules/payment/controllers/MainController.php at v18.5.0 · pH7Software/pH7-Social-Dating-CMS · GitHub

https://github.com/pH7Software/pH7-Social-Dating-CMS/blob/v18.5.0/_protected/app/system/modules/payment/controllers/MainController.php#L274-L380
github_commit Patch Available

commit 5218d017491f (pH7Software/pH7-Social-Dating-CMS)

Patch available: pH7Software/pH7-Social-Dating-CMS v18.5.1 (contains commit 5218d017491f)

https://github.com/pH7Software/pH7-Social-Dating-CMS/commit/5218d017491fc855c0c788bd020e2376efdee76e

Vendor Advisories for CVE-2026-107636(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× 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.

  1. 2026-10-10 19:59 UTCEPSS rescore
  2. 2026-10-10 19:12 UTCEG score recompute
  3. 2026-10-10 19:12 UTCGHSA enrichment
  4. 2026-10-09 20:06 UTCEPSS rescore
  5. 2026-10-09 18:53 UTCGHSA enrichment
  6. 2026-10-08 18:37 UTCEG score recompute
  7. 2026-10-08 18:37 UTCGHSA enrichment
  8. 2026-10-08 17:59 UTCEG score recompute
  9. 2026-10-08 17:59 UTCGHSA enrichment
  10. 2026-10-08 15:20 UTCEG score recompute
  11. 2026-10-08 14:17 UTCEG score recompute
  12. 2026-10-08 14:16 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-107636?
CVE-2026-107636 is a medium vulnerability published on October 8, 2026. pH7Builder (pH7 Social Dating CMS) before 18.5.1 contains a payment validation vulnerability that allows registered low-privileged members to obtain any membership tier by supplying client-controlled plan and amount fields. Attackers can set itemnumber, cartorder_id, or the PayPal custom field…
When was CVE-2026-107636 disclosed?
CVE-2026-107636 was first published on October 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-107636 actively exploited?
CVE-2026-107636 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (22nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-107636?
CVE-2026-107636 has a CVSS base score of 6.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-107636?
A fix for CVE-2026-107636 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-107636 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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