CVE-2026-10623

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

Score 4.3 from GitHub Security Advisory published 2026-06-18. A secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
4.3EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 4.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

The PressPrimer Quiz – AI Quiz Maker, Exam Builder & LMS Assessment Plugin plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.3.0 via the 'rule_id' parameter due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with custom-level access and above, to modify or delete quiz rules belonging to other teachers, resulting in unauthorized tampering of another user's quiz structure.

CVSS v3
4.3
EG Score
4.3MEDIUMmedium confidence
EG Risk
19
EG Risk 19/100

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 (value × EchelonGraph’s weight)
Severity43% × 45%
The EG Score, 4.3 of 10.
Exploitation0% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's BOD 26-04 default: no one has published Automatable for this CVE, and CISA treats it as “no” for a CVE not in KEV.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
15th
KEV
Not listed

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

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

Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from 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; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” 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

June 18, 2026

Last Modified

June 18, 2026

Advisory Details (1)

Auto-updated Jun 18, 2026
Patch available. Sources: github_commit.
github_commit Patch Available

commit 1795687 (PressPrimer/pressprimer-quiz)

Patch available: PressPrimer/pressprimer-quiz v2.3.1 (contains commit 1795687)

https://github.com/PressPrimer/pressprimer-quiz/commit/1795687

Vendor Advisories for CVE-2026-10623(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 9× in last 7d / 24× 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 193 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 93 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-11 15:00 UTCEG score recompute
  2. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  3. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  4. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  5. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  6. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  7. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  8. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  9. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  10. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  11. 2026-10-02 16:40 UTCOSV refresh
  12. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  13. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  14. 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  15. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  16. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  17. 2026-09-23 13:47 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  18. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  19. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  20. 2026-09-16 05:14 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  21. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  22. 2026-09-13 14:06 UTCEG score recompute
  23. 2026-09-13 14:06 UTCGHSA enrichmentGHSA-ghw7-hv89-j7jq · GitHub CVSS 4.3
  24. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  25. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.3% · 16th percentile
Show 75 more
  1. 2026-09-11 09:36 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  2. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  3. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  4. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  5. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  6. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  7. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  8. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  9. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  10. 2026-08-30 21:13 UTCEG score recompute
  11. 2026-08-30 21:13 UTCGHSA enrichmentGHSA-ghw7-hv89-j7jq · GitHub CVSS 4.3
  12. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  13. 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  14. 2026-08-28 21:40 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  15. 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  16. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  17. 2026-08-25 06:53 UTCEG score recompute
  18. 2026-08-25 06:53 UTCGHSA enrichmentGHSA-ghw7-hv89-j7jq · GitHub CVSS 4.3
  19. 2026-08-24 05:18 UTCGHSA enrichmentGHSA-ghw7-hv89-j7jq · GitHub CVSS 4.3
  20. 2026-08-23 03:49 UTCEG score recompute
  21. 2026-08-23 03:49 UTCGHSA enrichmentGHSA-ghw7-hv89-j7jq · GitHub CVSS 4.3
  22. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  23. 2026-08-21 23:48 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  24. 2026-08-21 11:53 UTCEG score recompute
  25. 2026-08-21 11:53 UTCGHSA enrichmentGHSA-ghw7-hv89-j7jq · GitHub CVSS 4.3
  26. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  27. 2026-08-20 09:33 UTCEG score recompute
  28. 2026-08-20 09:33 UTCGHSA enrichmentGHSA-ghw7-hv89-j7jq · GitHub CVSS 4.3
  29. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  30. 2026-08-19 08:05 UTCEG score recompute
  31. 2026-08-19 08:04 UTCGHSA enrichmentGHSA-ghw7-hv89-j7jq · GitHub CVSS 4.3
  32. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  33. 2026-08-17 12:29 UTCEG score recompute
  34. 2026-08-17 12:29 UTCGHSA enrichmentGHSA-ghw7-hv89-j7jq · GitHub CVSS 4.3
  35. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  36. 2026-08-16 10:36 UTCEG score recompute
  37. 2026-08-16 10:36 UTCGHSA enrichmentGHSA-ghw7-hv89-j7jq · GitHub CVSS 4.3
  38. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  39. 2026-08-15 09:08 UTCEG score recompute
  40. 2026-08-15 09:08 UTCGHSA enrichmentGHSA-ghw7-hv89-j7jq · GitHub CVSS 4.3
  41. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  42. 2026-08-14 05:57 UTCEG score recompute
  43. 2026-08-14 05:57 UTCGHSA enrichmentGHSA-ghw7-hv89-j7jq · GitHub CVSS 4.3
  44. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  45. 2026-08-13 04:28 UTCEG score recompute
  46. 2026-08-13 04:28 UTCGHSA enrichmentGHSA-ghw7-hv89-j7jq · GitHub CVSS 4.3
  47. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  48. 2026-08-12 03:00 UTCEG score recompute
  49. 2026-08-12 03:00 UTCGHSA enrichmentGHSA-ghw7-hv89-j7jq · GitHub CVSS 4.3
  50. 2026-08-11 13:42 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  51. 2026-08-11 01:32 UTCEG score recompute
  52. 2026-08-11 01:32 UTCGHSA enrichmentGHSA-ghw7-hv89-j7jq · GitHub CVSS 4.3
  53. 2026-08-10 23:59 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  54. 2026-08-10 00:03 UTCEG score recompute
  55. 2026-08-10 00:03 UTCGHSA enrichmentGHSA-ghw7-hv89-j7jq · GitHub CVSS 4.3
  56. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  57. 2026-08-08 22:35 UTCEG score recompute
  58. 2026-08-08 22:35 UTCGHSA enrichmentGHSA-ghw7-hv89-j7jq · GitHub CVSS 4.3
  59. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  60. 2026-08-07 21:06 UTCEG score recompute
  61. 2026-08-07 21:06 UTCGHSA enrichmentGHSA-ghw7-hv89-j7jq · GitHub CVSS 4.3
  62. 2026-08-06 19:38 UTCEG score recompute
  63. 2026-08-06 19:38 UTCGHSA enrichmentGHSA-ghw7-hv89-j7jq · GitHub CVSS 4.3
  64. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  65. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  66. 2026-08-05 18:09 UTCGHSA enrichmentGHSA-ghw7-hv89-j7jq · GitHub CVSS 4.3
  67. 2026-08-04 15:53 UTCEG score recompute
  68. 2026-08-04 15:53 UTCGHSA enrichmentGHSA-ghw7-hv89-j7jq · GitHub CVSS 4.3
  69. 2026-08-04 15:09 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  70. 2026-08-04 10:38 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  71. 2026-08-03 14:24 UTCEG score recompute
  72. 2026-08-03 14:24 UTCGHSA enrichmentGHSA-ghw7-hv89-j7jq · GitHub CVSS 4.3
  73. 2026-08-03 10:35 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  74. 2026-08-02 09:22 UTCEG score recompute
  75. 2026-08-02 09:22 UTCGHSA enrichmentGHSA-ghw7-hv89-j7jq · GitHub CVSS 4.3

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-10623?
CVE-2026-10623 is a medium-severity vulnerability; its CVE record was published on June 18, 2026. The PressPrimer Quiz – AI Quiz Maker, Exam Builder & LMS Assessment Plugin plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.3.0 via the 'rule_id' parameter due to missing validation on a user controlled key. This makes it possible for…
When was the CVE record for CVE-2026-10623 published?
The CVE record for CVE-2026-10623 was published on June 18, 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 June 18, 2026; the record at its source may have been updated since.
Is CVE-2026-10623 actively exploited?
CVE-2026-10623 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (15th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-10623?
CVE-2026-10623 has a CVSS base score of 4.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-10623?
A fix for CVE-2026-10623 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-10623 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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