How severe is CVE-2023-2288?

CVE-2023-2288 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-2023-2288 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 18% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-2288?

CVE-2023-2288 affects Themeisle Otter. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-2288?

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-2023-2288 published?

CVE-2023-2288 was published on 2023-05-30 and last updated on 2026-06-17.

CVE-2023-2288

CVE-2023-2288 is a high-severity vulnerability in Themeisle Otter with a CVSS 3.x base score of 8.8. Its EPSS exploit-prediction score of 18% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-502.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 18% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Themeisle Otter
Published: 2023-05-30
Last modified: 2026-06-17

Description

The Otter WordPress plugin before 2.2.6 does not sanitize some user-controlled file paths before performing file operations on them. This leads to a PHAR deserialization vulnerability on PHP < 8.0 using the phar:// stream wrapper.

Frequently asked questions

What is CVE-2023-2288?: The Otter WordPress plugin before 2.2.6 does not sanitize some user-controlled file paths before performing file operations on them. This leads to a PHAR deserialization vulnerability on PHP < 8.0 using the phar:// stream wrapper.
How severe is CVE-2023-2288?: CVE-2023-2288 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-2023-2288 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 18% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-2288?: CVE-2023-2288 affects Themeisle Otter. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-2288?: 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-2023-2288 published?: CVE-2023-2288 was published on 2023-05-30 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/93acb4ee-1053-48e1-8b69-c09dc3b2f302

Affected products (1)

cpe:2.3:a:themeisle:otter:*:*:*:*:*:wordpress:*:*

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