CVE-2016-1157: Cross-site scripting (XSS) vulnerability in log_chat.cgi in Script* Log-Chat before 2.0 allows remote attacker

Routine

MEDIUM 6.1DOWNGRADE

CVE-2016-1157 is a medium-severity flaw (CVSS 6.1) affecting log-chat. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in log_chat.cgi in Script* Log-Chat before 2.0 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.0% (top 37%)
CISA exploited list	No
Weakness	CWE-79
Published	2016-02-23
Last modified	2026-06-17

Publisher (CNA): JPCERT/CC · Vendor: log-chat project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2016-02-23 05:59 UTCPublished CVE record published
2026-06-17 00:41 UTCUpdated Record last modified

log-chat project log-chat DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy log-chat || rpm -q log-chat || log-chat --version

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison log-chat sudo apt install log-chat=<VERSION_BEFORE_1.0> sudo apt-mark hold log-chat

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list log-chat sudo dnf downgrade log-chat-<VERSION_BEFORE_1.0> sudo dnf versionlock add log-chat

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2016-1157?

log-chat: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2016-1157 being exploited?

CVE-2016-1157 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2016-1157 affect?

CVE-2016-1157 affects log-chat. Severity is medium (CVSS 6.1). Cross-site scripting (XSS) vulnerability in log_chat.cgi in Script* Log-Chat before 2.0 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

How urgent is CVE-2016-1157?

Priority 37/100. No elevated risk signals yet.

References

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