CVE-2018-25353

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-26. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this weekElevated
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: Elevated riskExposed: 0

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

Redaxo CMS Mediapool Addon 5.5.1 and older contains an arbitrary file upload vulnerability that allows authenticated users to bypass file extension blacklist restrictions. Attackers with editor accounts can upload executable files by using obfuscated extensions like php71 or php53 to evade the blacklist filter and execute arbitrary code.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
56(Track*)
EG Risk 56/100SSVC: Track*

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
Severity88% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
37%
KEV
Not listed

Published

May 26, 2026

Last Modified

July 23, 2026

Advisory Details (2)

Auto-updated Jun 2, 2026
No patch confirmed yet.
generic

Redaxo CMS Mediapool Addon 5.5.1 Arbitrary File Upload | Advisories | VulnCheck

https://www.vulncheck.com/advisories/redaxo-cms-mediapool-addon-arbitrary-file-upload
generic

REDAXO - Content Management System [CMS] - Kostenlos - Frei - PHP - MySQL - Open-Source | Simple To Use | home

https://redaxo.org

Vendor Advisories for CVE-2018-25353(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 14× in last 7d / 52× 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.

Showing the most recent 100 of 146 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2018-25353?
CVE-2018-25353 is a high vulnerability published on May 26, 2026. Redaxo CMS Mediapool Addon 5.5.1 and older contains an arbitrary file upload vulnerability that allows authenticated users to bypass file extension blacklist restrictions. Attackers with editor accounts can upload executable files by using obfuscated extensions like php71 or php53 to evade the…
When was CVE-2018-25353 disclosed?
CVE-2018-25353 was first published in the National Vulnerability Database on May 26, 2026, with the most recent update on July 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-25353 actively exploited?
CVE-2018-25353 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 63.1% of all scored CVEs.
What is the CVSS score of CVE-2018-25353?
CVE-2018-25353 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2018-25353?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-25353, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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