CVE-2023-54352

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-08. A secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Elevated
9.8EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 9.8Exploit: No code on recordExposed services: Not assessed

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

WordPress Seotheme contains a remote code execution vulnerability that allows unauthenticated attackers to execute arbitrary PHP code by uploading malicious files to the theme directory. Attackers can access the uploaded PHP shell at /wp-content/themes/seotheme/mar.php to execute system commands and upload additional files for persistent access.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
75
EG Risk 75/100

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)
Severity98% × 45%
The EG Score, 9.8 of 10.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (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
0.6%
EPSS %ILE
47th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

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 public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (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

Published

June 8, 2026

Last Modified

July 23, 2026

Advisory Details (2)

Auto-updated Oct 10, 2026
No fix on record yet.
generic

WordPress Seotheme Remote Code Execution Unauthenticated | Advisories | VulnCheck

https://www.vulncheck.com/advisories/wordpress-seotheme-remote-code-execution-unauthenticated
generic

Wordpress Seotheme - Remote Code Execution Unauthenticated - PHP webapps Exploit

https://www.exploit-db.com/exploits/51789

Vendor Advisories for CVE-2023-54352(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 8× in last 7d / 26× 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 95 of 429 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. 5 repeat rows among the latest 100 are merged into the row they repeat. The 334 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-11 13:45 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  2. 2026-10-10 19:58 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  3. 2026-10-09 20:05 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  4. 2026-10-08 17:06 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  5. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  6. 2026-10-06 15:15 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  7. 2026-10-05 17:41 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  8. 2026-10-04 23:20 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  9. 2026-10-03 14:23 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  10. 2026-10-01 19:48 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  11. 2026-09-30 16:38 UTCEG score recompute
  12. 2026-09-30 15:01 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  13. 2026-09-29 15:17 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  14. 2026-09-28 13:49 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  15. 2026-09-26 00:22 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  16. 2026-09-24 14:01 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  17. 2026-09-23 13:46 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  18. 2026-09-18 19:26 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  19. 2026-09-16 14:06 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  20. 2026-09-16 05:11 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  21. 2026-09-15 03:08 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  22. 2026-09-14 09:13 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  23. 2026-09-14 04:57 UTCEG score recompute
  24. 2026-09-14 04:57 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  25. 2026-09-13 16:45 UTCEPSS rescoreEPSS 0.6% · 47th percentile
Show 70 more
  1. 2026-09-12 14:58 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  2. 2026-09-11 14:51 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  3. 2026-09-11 09:34 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  4. 2026-09-08 21:58 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  5. 2026-09-07 15:59 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  6. 2026-09-06 13:46 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  7. 2026-09-05 15:26 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  8. 2026-09-04 13:58 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  9. 2026-09-04 05:04 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  10. 2026-09-02 14:10 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  11. 2026-09-01 13:52 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  12. 2026-09-01 04:36 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  13. 2026-08-30 19:15 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  14. 2026-08-30 01:20 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  15. 2026-08-28 21:39 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  16. 2026-08-27 14:23 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  17. 2026-08-26 14:44 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  18. 2026-08-25 13:47 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  19. 2026-08-25 06:16 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  20. 2026-08-25 01:40 UTCEG score recompute
  21. 2026-08-25 01:40 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  22. 2026-08-24 01:11 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  23. 2026-08-23 20:37 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  24. 2026-08-23 16:21 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  25. 2026-08-23 12:01 UTCEG score recompute
  26. 2026-08-23 12:01 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  27. 2026-08-23 00:17 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  28. 2026-08-22 00:20 UTCEG score recompute
  29. 2026-08-22 00:20 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  30. 2026-08-21 23:47 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  31. 2026-08-21 20:04 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  32. 2026-08-21 12:43 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  33. 2026-08-21 06:42 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  34. 2026-08-21 02:11 UTCEG score recompute
  35. 2026-08-21 02:11 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  36. 2026-08-20 22:53 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  37. 2026-08-20 21:43 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  38. 2026-08-20 17:26 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  39. 2026-08-20 09:34 UTCEG score recompute
  40. 2026-08-20 09:34 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  41. 2026-08-19 17:02 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  42. 2026-08-18 13:46 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  43. 2026-08-17 15:17 UTCEG score recompute
  44. 2026-08-17 15:17 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  45. 2026-08-17 10:56 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  46. 2026-08-17 06:40 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  47. 2026-08-17 02:02 UTCEG score recompute
  48. 2026-08-17 02:02 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  49. 2026-08-16 14:54 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  50. 2026-08-16 14:28 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  51. 2026-08-16 09:54 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  52. 2026-08-16 05:38 UTCEG score recompute
  53. 2026-08-16 05:38 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  54. 2026-08-16 02:12 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  55. 2026-08-16 01:23 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  56. 2026-08-15 16:30 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  57. 2026-08-15 12:14 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  58. 2026-08-15 04:36 UTCEG score recompute
  59. 2026-08-15 04:36 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  60. 2026-08-15 01:28 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  61. 2026-08-15 00:07 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  62. 2026-08-14 19:51 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  63. 2026-08-14 15:35 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  64. 2026-08-14 11:19 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  65. 2026-08-14 07:03 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  66. 2026-08-14 02:45 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  67. 2026-08-13 22:29 UTCEG score recompute
  68. 2026-08-13 22:29 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8
  69. 2026-08-13 21:58 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  70. 2026-08-13 15:05 UTCGHSA enrichmentGHSA-mc6x-cw9h-wfr5 · GitHub severity CRITICAL · GitHub CVSS 9.8

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2023-54352?
CVE-2023-54352 is a critical-severity vulnerability; its CVE record was published on June 8, 2026. WordPress Seotheme contains a remote code execution vulnerability that allows unauthenticated attackers to execute arbitrary PHP code by uploading malicious files to the theme directory. Attackers can access the uploaded PHP shell at /wp-content/themes/seotheme/mar.php to execute system commands…
When was the CVE record for CVE-2023-54352 published?
The CVE record for CVE-2023-54352 was published on June 8, 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 July 23, 2026; the record at its source may have been updated since.
Is CVE-2023-54352 actively exploited?
CVE-2023-54352 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (47th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2023-54352?
CVE-2023-54352 has a CVSS base score of 9.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2023-54352?
No fix for CVE-2023-54352 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 vendor advisories EchelonGraph has for CVE-2023-54352 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2023-54352

Explore →

Is Your Infrastructure Affected by CVE-2023-54352?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs