How severe is CVE-2023-3186?

CVE-2023-3186 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-3186 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-3186?

CVE-2023-3186 affects Supsystic Popup. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-3186?

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

When was CVE-2023-3186 published?

CVE-2023-3186 was published on 2023-07-17 and last updated on 2026-06-17.

CVE-2023-3186

CVE-2023-3186 is a critical-severity vulnerability in Supsystic Popup with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Supsystic Popup
Published: 2023-07-17
Last modified: 2026-06-17

Description

The Popup by Supsystic WordPress plugin before 1.10.19 has a prototype pollution vulnerability that could allow an attacker to inject arbitrary properties into Object.prototype.

Frequently asked questions

What is CVE-2023-3186?: The Popup by Supsystic WordPress plugin before 1.10.19 has a prototype pollution vulnerability that could allow an attacker to inject arbitrary properties into Object.prototype.
How severe is CVE-2023-3186?: CVE-2023-3186 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-3186 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-3186?: CVE-2023-3186 affects Supsystic Popup. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-3186?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-3186 published?: CVE-2023-3186 was published on 2023-07-17 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/545007fc-3173-47b1-82c4-ed3fd1247b9c

Affected products (1)

cpe:2.3:a:supsystic:popup:*:*:*:*:*:wordpress:*:*

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