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CVE-2020-26118: smartbear collaborator Deserialization of Untrusted Data

CVSS: 9.0v2.0HighModified
Published 11-01-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-26118 is a high (CVSS 9.0) Deserialization of Untrusted Data vulnerability in smartbear collaborator. EPSS estimates a 3.81% chance of exploitation in the next 30 days, higher than 89.9% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.0/10
010
High · v2.0 (NVD)
EPSS score
3.81%
0%100%
Low · +0.05 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 11-01-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

In SmartBear Collaborator Server through 13.3.13302, use of the Google Web Toolkit (GWT) API introduces a post-authentication Java deserialization vulnerability. The application's UpdateMemento class accepts a serialized Java object directly from the user without properly sanitizing it. A malicious object can be submitted to the server via an authenticated attacker to execute commands on the underlying system.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

3.81%

Chance of exploitation in the next 30 days

Percentile

90%

Versus all other CVEs

30-day change

+0.05 pp

From 3.76% on 20-09-2026

20-09-202620-10-2026
EPSS score
3.81%

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

Smartbear1 product

1 vendor · 1 product

References

3 links