9.1

CVE-2023-49777: WordPress YITH WooCommerce Product Add-Ons Plugin <= 4.3.0 is vulnerable to PHP Object Injection

Modified
Published 31-12-2023Last modified 28-04-2026

Vulnerability summary

CVE-2023-49777 is a critical (CVSS 9.1) Deserialization of Untrusted Data vulnerability in wordpress yith-woocommerce-product-add-ons. EPSS estimates a 0.69% chance of exploitation in the next 30 days, higher than 52.2% of scored vulnerabilities. Fixed in 4.3.1.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.1/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.69%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

  1. 31-12-2023
    PublishedVulnerability first disclosed.
  2. 28-04-2026
    Last modifiedVulnerability information updated.

Description

Deserialization of Untrusted Data vulnerability in YITH YITH WooCommerce Product Add-Ons.This issue affects YITH WooCommerce Product Add-Ons: from n/a through 4.3.0.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.69%

Chance of exploitation in the next 30 days

Percentile

52%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.69% on 22-09-2026

22-09-202622-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Wordpress1 product
  • yith-woocommerce-product-add-ons< 4.3.1
Yith1 product
Yithemes1 product

3 vendors · 3 products

References

2 links