7.2

CVE-2021-23358: Arbitrary Code Injection

Modified
AliasesMGASA-2021-0269UBUNTU-CVE-2021-23358USN-4913-1
Published 29-03-2021Last modified 03-11-2025

Vulnerability summary

CVE-2021-23358 is a high (CVSS 7.2) Improper Control of Generation of Code vulnerability in debian debian_linux. EPSS estimates a 4.20% chance of exploitation in the next 30 days, higher than 90.9% of scored vulnerabilities. 4 public exploits are recorded.

Priority
Routine

Not severe (CVSS 3.3, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.2/10
010
High · v3.1 (NVD)
EPSS score
4.20%
0%100%
Low · +0.11 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits4reference

Advisory lineage

Upstream 0 · Downstream 3
RHSA-2021:2865RHSA-2022:6393RHSA-2026:2769

Timeline

  1. 29-03-2021
    PublishedVulnerability first disclosed.
  2. 03-11-2025
    Last modifiedVulnerability information updated.

Description

The package underscore from 1.13.0-0 and before 1.13.0-2, from 1.3.2 and before 1.12.1 are vulnerable to Arbitrary Code Injection via the template function, particularly when a variable property is passed as an argument as it is not sanitized.

CVSS metrics

6 scores · 5 sources · 2 versions

EPSS trend

Probability

4.20%

Chance of exploitation in the next 30 days

Percentile

91%

Versus all other CVEs

30-day change

Increase +0.11 pp

From 4.09% on 04-10-2026

04-10-202603-11-2026

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

4 found
  • referenceUnverified

    Exploit Reference (snyk.io)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (snyk.io)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (snyk.io)

    Maturity: unknown

Show all 4 exploits
  • referenceUnverified

    Exploit Reference (snyk.io)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, administrative account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Debian2 products
  • underscore< 1.9.1~dfsg-1+deb10u1 | < 1.8.3~dfsg-1+deb9u1 | < 1.9.1~dfsg-2
  • debian_linuxEOL9.0 | 10.0
Opensuse2 products
  • nodejs-underscore&distro=openSUSE Leap 15.2< 1.13.1-lp152.4.3.1
  • nodejs-underscore&distro=openSUSE Tumbleweed< 1.13.1-1.3
Fedoraproject1 product
Mageia1 product
  • puddletag< 2.0.2-0.git20210523.1.mga8
Npm1 product
  • underscore≥ 1.3.2, < 1.12.1
Tenable1 product
Ubuntu1 product
  • underscore< 1.4.4-2ubuntu1+esm1 | < 1.7.0~dfsg-1ubuntu1.1 | < 1.8.3~dfsg-1ubuntu0.1 | < 1.9.1~dfsg-1ubuntu0.20.04.1
Underscorejs1 product
  • underscore≥ 1.3.2, < 1.12.1 | ≥ 1.13.0-0, < 1.13.0-2

8 vendors · 10 products

References

45 links
Show all 45 references