CVE-2023-2288: themeisle otter Deserialization of Untrusted Data
CVSS: 8.8v3.1HighModified
Published 30-05-2023Last modified 10-01-2025
Vulnerability summary
CVE-2023-2288 is a high (CVSS 8.8) Deserialization of Untrusted Data vulnerability in themeisle otter. EPSS estimates a 17.97% chance of exploitation in the next 30 days, higher than 97.1% of scored vulnerabilities. 1 public exploit is recorded. Fixed in 2.2.6.
CVSS score
8.8/10
010
High · v3.1 (CVE.org)EPSS score
17.97%
0%100%
Medium · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 30-05-2023PublishedVulnerability first disclosed.
- 10-01-2025Last modifiedVulnerability information updated.
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.
CVSS metrics
3 scores · 3 sources · 1 versionHigh 8.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesAll 3 agree
- NVDNIST8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- wordfenceSource8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
17.97%
Chance of exploitation in the next 30 days
Percentile
97%
Versus all other CVEs
30-day change
0.00 pp
From 17.97% on 20-09-2026
20-09-202620-10-2026
EPSS score17.97%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (wpscan.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Themeisle1 product
- otter< 2.2.6
Unknown1 product
- otter< 2.2.6
Wordpress1 product
- otter-blocks≤ 2.2.5 (fixed in 2.2.6)
3 vendors · 3 products