How severe is CVE-2018-10084?

CVE-2018-10084 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-10084 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-10084?

CVE-2018-10084 affects Cmsmadesimple Cms Made Simple. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-10084?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-10084 published?

CVE-2018-10084 was published on 2018-04-13 and last updated on 2026-06-17.

CVE-2018-10084

CVE-2018-10084 is a high-severity vulnerability in Cmsmadesimple Cms Made Simple with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-327.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-327
Affected product: Cmsmadesimple Cms Made Simple
Published: 2018-04-13
Last modified: 2026-06-17

Description

CMS Made Simple (CMSMS) through 2.2.6 contains a privilege escalation vulnerability from ordinary user to admin user by arranging for the eff_uid value within $_COOKIE[$this->_loginkey] to equal 1, because an SHA-1 cryptographic protection mechanism can be bypassed.

Frequently asked questions

What is CVE-2018-10084?: CMS Made Simple (CMSMS) through 2.2.6 contains a privilege escalation vulnerability from ordinary user to admin user by arranging for the eff_uid value within $_COOKIE[$this->_loginkey] to equal 1, because an SHA-1 cryptographic protection mechanism can be bypassed.
How severe is CVE-2018-10084?: CVE-2018-10084 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-10084 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-10084?: CVE-2018-10084 affects Cmsmadesimple Cms Made Simple. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-10084?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-10084 published?: CVE-2018-10084 was published on 2018-04-13 and last updated on 2026-06-17.

References

https://github.com/itodaro/cve/blob/master/README.md

Affected products (1)

cpe:2.3:a:cmsmadesimple:cms_made_simple:*:*:*:*:*:*:*:*

More vulnerabilities in Cmsmadesimple Cms Made Simple

CVE-2010-4663 — Critical (CVSS 10.0): Unspecified vulnerability in the News module in CMS Made Simple (CMSMS) before 1.9.1 has unknown impact and attack…
CVE-2024-1527 — Critical (CVSS 9.8): Unrestricted file upload vulnerability in CMS Made Simple, affecting version 2.2.14. This vulnerability allows an…
CVE-2018-10085 — Critical (CVSS 9.8): CMS Made Simple (CMSMS) through 2.2.6 allows PHP object injection because of an unserialize call in the _get_data…
CVE-2018-10081 — Critical (CVSS 9.8): CMS Made Simple (CMSMS) through 2.2.6 contains an admin password reset vulnerability because data values are improperly…
CVE-2017-1000453 — Critical (CVSS 9.8): CMS Made Simple version 2.1.6 and 2.2 are vulnerable to Smarty templating injection in some core modules, resulting in…
CVE-2017-17735 — Critical (CVSS 9.8): CMS Made Simple (CMSMS) before 2.2.5 does not properly cache login information in cookies.

All CVEs affecting Cmsmadesimple Cms Made Simple →

Other CWE-327 (Use of a Broken or Risky Cryptographic Algorithm) vulnerabilities

CVE-2026-50086 — Critical (CVSS 10.0): The Aqara IAM/SSO gateway (gw-builder.aqara.com) exposes bidirectional AES round-trups against the platform's signing…
CVE-2026-21718 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in Copeland XWEB Pro version 1.12.1 and prior, enabling any attackers to…
CVE-2025-54426 — Critical (CVSS 9.9): Polkadot Frontier is an Ethereum and EVM compatibility layer for Polkadot and Substrate. In versions prior to commit…
CVE-2024-51478 — Critical (CVSS 9.9): YesWiki is a wiki system written in PHP. Prior to 4.4.5, the use of a weak cryptographic algorithm and a hard-coded…
CVE-2026-28252 — Critical (CVSS 9.8): A Use of a Broken or Risky Cryptographic Algorithm vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge…
CVE-2025-13476 — Critical (CVSS 9.8): Rakuten Viber Cloak mode in Android v25.7.2.0g and Windows v25.6.0.0–v25.8.1.0 uses a static and predictable TLS…

Browse all CWE-327 (Use of a Broken or Risky Cryptographic Algorithm) vulnerabilities →