CVE-2022-45077: muffingroup betheme Deserialization of Untrusted Data
CVSS: 8.8v3.1HighModified
Published 17-11-2022Last modified 28-04-2026
Vulnerability summary
CVE-2022-45077 is a high (CVSS 8.8) Deserialization of Untrusted Data vulnerability in muffingroup betheme. EPSS estimates a 0.67% chance of exploitation in the next 30 days, higher than 51.1% of scored vulnerabilities. Fixed in 26.6.
CVSS score
8.8/10
010
High · v3.1 (NVD)EPSS score
0.67%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 17-11-2022PublishedVulnerability first disclosed.
- 28-04-2026Last modifiedVulnerability information updated.
Description
Auth. (subscriber+) PHP Object Injection vulnerability in Betheme theme <= 26.5.1.4 on WordPress.
CVSS metrics
3 scores · 3 sources · 1 versionHigh 8.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSources3 sources · 6.3–8.8
- CVE.orgCNA6.3MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:LDiffers
- wordfenceSource8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.67%
Chance of exploitation in the next 30 days
Percentile
51%
Versus all other CVEs
30-day change
0.00 pp
From 0.67% on 20-09-2026
20-09-202620-10-2026
EPSS score0.67%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Muffingroup2 products
- betheme< 26.6
- betheme (wordpress theme)≥ <= 26.5.1.4, ≤ 26.5.1.4
Wordpress1 product
- betheme≤ 26.5.1.4 (fixed in 26.6)
2 vendors · 3 products
References
3 links- patchstack.com/database/…Third Party Advisory