CVE-2017-15877: Insecure Permissions vulnerability in db.php file in GPWeb 8.4.61 allows remote attackers to view the password

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2017-15877 is a critical-severity flaw (CVSS 9.8) affecting gpweb. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Insecure Permissions vulnerability in db.php file in GPWeb 8.4.61 allows remote attackers to view the password and user database.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Weakness	CWE-732
Published	2017-12-19
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: sistemagpweb

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

Am I affected?

Timeline

2017-12-19 02:29 UTCPublished CVE record published
2026-06-17 01:08 UTCUpdated Record last modified

sistemagpweb gpweb DOWNGRADE

Affected: 8.4.61

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.4.61

1. Check installed version

apt-cache policy gpweb || rpm -q gpweb || gpweb --version

2. No fixed release: DOWNGRADE to a release before 8.4.61 (Debian / Ubuntu)

apt-cache madison gpweb sudo apt install gpweb=<VERSION_BEFORE_8.4.61> sudo apt-mark hold gpweb

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

dnf --showduplicates list gpweb sudo dnf downgrade gpweb-<VERSION_BEFORE_8.4.61> sudo dnf versionlock add gpweb

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-2017-15877?

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

Is CVE-2017-15877 being exploited?

CVE-2017-15877 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-2017-15877 affect?

CVE-2017-15877 affects gpweb. Severity is critical (CVSS 9.8). Insecure Permissions vulnerability in db.php file in GPWeb 8.4.61 allows remote attackers to view the password and user database.

How urgent is CVE-2017-15877?

Priority 63/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

CVE-2017-15876 HIGH 7.2 DOWNGRADE Unrestricted File Upload vulnerability in GPWeb 8.4.61 allows remote authenticated users to upload any type of
CVE-2017-15875 CRITICAL 9.8 DOWNGRADE SQL injection vulnerability in Password Recovery in GPWeb 8.4.61 allows remote attackers to execute arbitrary

References

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