CVE-2023-1708Public exploitNetwork attack vector

Command execution via invisible copied characters

Published Apr 5, 2023 · Updated Feb 10, 2025

Code injection in GitLab CE/EE 1.0 through 15.8.4, 15.9.0 through 15.9.3, and 15.10.0 allows remote authenticated users to execute commands. The web interface renders attacker-supplied non-printable characters invisibly in Markdown code while its copy button preserves them in clipboard text. Exploitation requires a victim to copy the crafted command from attacker-controlled repository content or another Markdown field, paste it into a terminal, and execute it.

CVSS severity5.7
Medium
EPSS probability1.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in GitLab CE/EE 1.0 through 15.8.4, 15.9.0 through 15.9.3, and 15.10.0 allows remote authenticated users to execute commands. The web interface renders attacker-supplied non-printable characters invisibly in Markdown code while its copy button preserves them in clipboard text. Exploitation requires a victim to copy the crafted command from attacker-controlled repository content or another Markdown field, paste it into a terminal, and execute it.

The record

CVE
CVE-2023-1708
Published
Apr 5, 2023
Updated
Feb 10, 2025
Vendor
GitLab
Product
GitLab
Classifications
CWE-94, CWE-77, T1204.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 5, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>=1.0, <15.8.5
  2. Affected versionversion=>=15.10, <15.10.1
  3. Affected versionversion=>=15.9, <15.9.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GitLab · GitLabversion=>=1.0, <15.8.5; version=>=15.10, <15.10.1; version=>=15.9, <15.9.4

Published CVSS scores

5.7GitLabCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1204.004User Execution: Malicious Copy and Paste

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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