CVE-2026-17008

MEDIUMPre-NVD 5.35.3
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 5.3 from GitHub Security Advisory published 2026-08-12. A secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
5.3EG
EchelonGraph verdictMonitorRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.3Exploit: None knownExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

The CVE record's CNA (WPScan) lists Quick Paypal Payments versions up to and including 5.7.50 as affected. No release containing a fix is confirmed on record.

The Quick Paypal Payments WordPress plugin through 5.7.50 does not verify the paid amount, receiver, or payment status in its PayPal IPN handler and marks an order paid on an order-token match alone, so a buyer who pays an arbitrary small amount can have a full-price order marked paid.

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
39
EG Risk 39/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity53% × 45%
Impact severity (EG Severity): CVSS 5.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.2%
EPSS %ILE
4th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (5.3): severity, escalated by confirmed exploitation. This CVE's 5.3 is its impact severity (EG Severity), not escalated.

EG Severity
5.3 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-17). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 12, 2026

Last Modified

August 26, 2026

Advisory Details (1)

Auto-updated Aug 12, 2026
No fix on record yet.
Web page

Quick PayPal Payments <= 5.7.50 – Unauthenticated Payment Bypass via PayPal IPN | CVE 2026-17008 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/605c0c65-6258-411a-a028-f3de25613bdf/

Vendor Advisories for CVE-2026-17008(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 50× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 159 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 59 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  2. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  3. 2026-10-18 04:00 UTCEG score recompute
  4. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  5. 2026-10-16 16:40 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  6. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  7. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  8. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  9. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  10. 2026-10-12 16:29 UTCEG score recompute
  11. 2026-10-11 20:08 UTCEG score recompute
  12. 2026-10-11 17:21 UTCEG score recompute
  13. 2026-10-11 14:53 UTCEG score recompute
  14. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  15. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  16. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  17. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  18. 2026-10-06 17:30 UTCEG score recompute
  19. 2026-10-06 17:30 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  20. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  21. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  22. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  23. 2026-10-04 22:32 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  24. 2026-10-03 20:15 UTCEG score recompute
  25. 2026-10-03 20:15 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
Show 75 more
  1. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  2. 2026-10-02 08:23 UTCEG score recompute
  3. 2026-10-02 08:23 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  4. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  5. 2026-09-30 21:58 UTCEG score recompute
  6. 2026-09-30 21:58 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  7. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  8. 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  9. 2026-09-29 07:01 UTCEG score recompute
  10. 2026-09-29 07:01 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  11. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  12. 2026-09-28 08:32 UTCEG score recompute
  13. 2026-09-28 08:32 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  14. 2026-09-27 13:47 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  15. 2026-09-27 09:57 UTCEG score recompute
  16. 2026-09-27 09:57 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  17. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  18. 2026-09-25 03:43 UTCEG score recompute
  19. 2026-09-25 03:43 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  20. 2026-09-23 20:55 UTCEG score recompute
  21. 2026-09-23 20:55 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  22. 2026-09-22 21:07 UTCEG score recompute
  23. 2026-09-22 21:07 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  24. 2026-09-21 20:13 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  25. 2026-09-20 19:56 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  26. 2026-09-19 21:27 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  27. 2026-09-18 22:59 UTCEG score recompute
  28. 2026-09-18 22:59 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  29. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  30. 2026-09-18 00:32 UTCEG score recompute
  31. 2026-09-18 00:32 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  32. 2026-09-17 00:23 UTCEG score recompute
  33. 2026-09-17 00:23 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  34. 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  35. 2026-09-16 05:14 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  36. 2026-09-15 22:03 UTCEG score recompute
  37. 2026-09-15 22:02 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  38. 2026-09-14 22:17 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  39. 2026-09-13 21:40 UTCEG score recompute
  40. 2026-09-13 21:40 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  41. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  42. 2026-09-12 23:12 UTCEG score recompute
  43. 2026-09-12 23:12 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  44. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  45. 2026-09-12 00:43 UTCEG score recompute
  46. 2026-09-12 00:42 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  47. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  48. 2026-09-11 09:36 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  49. 2026-09-11 02:14 UTCEG score recompute
  50. 2026-09-11 02:14 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  51. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  52. 2026-09-10 03:46 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  53. 2026-09-09 05:18 UTCEG score recompute
  54. 2026-09-09 05:18 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  55. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  56. 2026-09-07 20:25 UTCEG score recompute
  57. 2026-09-07 20:25 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  58. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  59. 2026-09-06 21:57 UTCEG score recompute
  60. 2026-09-06 21:57 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  61. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  62. 2026-09-05 23:29 UTCEG score recompute
  63. 2026-09-05 23:29 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  64. 2026-09-05 01:01 UTCEG score recompute
  65. 2026-09-05 01:01 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  66. 2026-09-04 02:24 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  67. 2026-09-03 03:54 UTCEG score recompute
  68. 2026-09-03 03:54 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  69. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  70. 2026-09-02 05:26 UTCEG score recompute
  71. 2026-09-02 05:26 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  72. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  73. 2026-09-01 06:26 UTCEG score recompute
  74. 2026-09-01 06:26 UTCGHSA enrichmentGHSA-wpmj-p56j-6mq2 · GitHub CVSS 5.3
  75. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.1% · 1st percentile

Frequently asked(5)

What is CVE-2026-17008?
CVE-2026-17008 is a medium-severity vulnerability; its CVE record was published on August 12, 2026. The Quick Paypal Payments WordPress plugin through 5.7.50 does not verify the paid amount, receiver, or payment status in its PayPal IPN handler and marks an order paid on an order-token match alone, so a buyer who pays an arbitrary small amount can have a full-price order marked paid.
When was the CVE record for CVE-2026-17008 published?
The CVE record for CVE-2026-17008 was published on August 12, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of August 26, 2026; the record at its source may have been updated since.
Is CVE-2026-17008 actively exploited?
CVE-2026-17008 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (4th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-17008?
CVE-2026-17008 has a CVSS base score of 5.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-17008?
No fix for CVE-2026-17008 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The CVE record's CNA (WPScan) lists Quick Paypal Payments versions up to and including 5.7.50 as affected. No release containing a fix is confirmed on record. The vendor advisories EchelonGraph has for CVE-2026-17008 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-17008

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