8.8

CVE-2018-1000773: wordpress Improper Input Validation

CVSS: 8.8v3.0HighModified
AliasesUBUNTU-CVE-2018-1000773
Published 06-09-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-1000773 is a high (CVSS 8.8) Improper Input Validation vulnerability in wordpress. EPSS estimates a 8.34% chance of exploitation in the next 30 days, higher than 94.9% of scored vulnerabilities. Fixed in 3.7.28.

Overall risk
37/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.0 (NVD)
EPSS score
8.34%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Duplicates 1
CVE-2018-1000673

Timeline

  1. 06-09-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

WordPress version 4.9.8 and earlier contains a CWE-20 Input Validation vulnerability in thumbnail processing that can result in remote code execution due to an incomplete fix for CVE-2017-1000600. This attack appears to be exploitable via thumbnail upload by an authenticated user and may require additional plugins in order to be exploited however this has not been confirmed at this time.

CVSS metrics

4 scores · 3 sources · 3 versions

EPSS trend

Probability

8.34%

Chance of exploitation in the next 30 days

Percentile

95%

Versus all other CVEs

30-day change

0.00 pp

From 8.34% on 20-09-2026

20-09-202620-10-2026
EPSS score
8.34%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Wordpress2 products
  • wordpress< 3.7 (fixed in 3.7.28) | ≥ 3.7, ≤ 3.7.27 (fixed in 3.7.28) | ≥ 3.8, ≤ 3.8.27 (fixed in 3.7.28) | ≥ 3.9, ≤ 3.9.25 (fixed in 3.7.28) | ≥ 4.0, ≤ 4.0.24 (fixed in 3.7.28) | ≥ 4.1, ≤ 4.1.24 (fixed in 3.7.28) | ≥ 4.2, ≤ 4.2.21 (fixed in 3.7.28) | ≥ 4.3, ≤ 4.3.17 (fixed in 3.7.28) | ≥ 4.4, ≤ 4.4.16 (fixed in 3.7.28) | ≥ 4.5, ≤ 4.5.15 (fixed in 3.7.28) | ≥ 4.6, ≤ 4.6.12 (fixed in 3.7.28) | ≥ 4.7, ≤ 4.7.11 (fixed in 3.7.28) | ≥ 4.8, ≤ 4.8.7 (fixed in 3.7.28) | ≥ 4.9, ≤ 4.9.8 (fixed in 3.7.28) | 5.0 (fixed in 3.7.28)
  • wordpress≤ 4.9.8
Ubuntu1 product
  • wordpressAll versions (No fix recorded)

2 vendors · 3 products

References

6 links