CVE-2018-1000525

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-13. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 4%CVSS: 9.8Exploit: NoneExposed: 0

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

openpsa contains a PHP Object Injection vulnerability in Form data passed as GET request variables that can result in Possible information disclosure and remote code execution. This attack appear to be exploitable via Specially crafted GET request variable containing serialised PHP object. This vulnerability appears to have been fixed in after commit 097eae0.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
—
EPSS
89.6%
KEV
Not listed

Published

June 26, 2018

Last Modified

November 21, 2024

Advisory Details (2)

Auto-updated May 28, 2026
No patch confirmed yet.
generic

PHP Object Deserialization · Issue #191 · flack/openpsa · GitHub

https://github.com/flack/openpsa/issues/191
generic

OpenPSA PHP Objection Injection | 0dd - The Zero (0) Day Division

https://0dd.zone/2018/05/31/OpenPSA-Object-Injection/

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 42× 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. 2026-07-22 22:12 UTCEG score recompute
  2. 2026-07-22 14:04 UTCEPSS rescore
  3. 2026-07-21 15:21 UTCEPSS rescore
  4. 2026-07-20 17:04 UTCEPSS rescore
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  1. 2026-07-06 02:20 UTCEPSS rescore
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  8. 2026-06-30 23:19 UTCEPSS rescore
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  22. 2026-06-18 17:50 UTCEPSS rescore
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  28. 2026-06-13 22:58 UTCEPSS rescore
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  37. 2026-06-07 15:22 UTCEPSS rescore
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  39. 2026-06-06 13:45 UTCEPSS rescore
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  41. 2026-06-05 22:44 UTCEPSS rescore
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  49. 2026-06-01 13:49 UTCEPSS rescore
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  51. 2026-05-31 22:28 UTCEPSS rescore
  52. 2026-05-31 00:14 UTCEPSS rescore
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  54. 2026-05-29 13:41 UTCEPSS rescore
  55. 2026-05-28 13:42 UTCEPSS rescore
  56. 2026-05-28 13:42 UTCEPSS rescore
  57. 2026-05-28 06:18 UTCEG score recompute
  58. 2026-05-28 06:18 UTCGHSA enrichment
  59. 2026-05-27 13:38 UTCEPSS rescore
  60. 2026-05-27 13:38 UTCEPSS rescore
  61. 2026-05-26 13:42 UTCEPSS rescore
  62. 2026-05-26 07:17 UTCEPSS rescore
  63. 2026-05-26 07:17 UTCEPSS rescore
  64. 2026-05-25 16:46 UTCOSV refresh

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Frequently asked(5)

What is CVE-2018-1000525?
CVE-2018-1000525 is a critical vulnerability published on June 26, 2018. openpsa contains a PHP Object Injection vulnerability in Form data passed as GET request variables that can result in Possible information disclosure and remote code execution. This attack appear to be exploitable via Specially crafted GET request variable containing serialised PHP object. This…
When was CVE-2018-1000525 disclosed?
CVE-2018-1000525 was first published in the National Vulnerability Database on June 26, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-1000525 actively exploited?
CVE-2018-1000525 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 89.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2018-1000525?
CVE-2018-1000525 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2018-1000525?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-1000525, 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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