CVE-2020-36009: OBottle 2.0 in \c\g.php contains an arbitrary file download vulnerability.

This week

HIGH 7.5REMOTEDOWNGRADE

CVE-2020-36009 is a high-severity flaw (CVSS 7.5) affecting obottle. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

OBottle 2.0 in \c\g.php contains an arbitrary file download vulnerability.

Why this priority

High 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	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.3% (top 29%)
CISA exploited list	No
Published	2021-06-03
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: obottle project

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

Am I affected?

Timeline

2021-06-03 23:15 UTCPublished CVE record published
2026-06-17 03:14 UTCUpdated Record last modified

obottle project obottle DOWNGRADE

Affected: 2.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.0 (Debian / Ubuntu)

apt-cache madison obottle sudo apt install obottle=<VERSION_BEFORE_2.0> sudo apt-mark hold obottle

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

dnf --showduplicates list obottle sudo dnf downgrade obottle-<VERSION_BEFORE_2.0> sudo dnf versionlock add obottle

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-2020-36009?

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

Is CVE-2020-36009 being exploited?

CVE-2020-36009 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-2020-36009 affect?

CVE-2020-36009 affects obottle. Severity is high (CVSS 7.5). OBottle 2.0 in \c\g.php contains an arbitrary file download vulnerability.

How urgent is CVE-2020-36009?

Priority 54/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

CVE-2020-36008 HIGH 8.1 DOWNGRADE OBottle 2.0 in \c\t.php contains an arbitrary file write vulnerability.

References

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