CVE-2023-53899: PodcastGenerator 3.2.9 contains a blind server-side request forgery vulnerability that allows attackers to inj

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2023-53899 is a critical-severity flaw (CVSS 9.8) affecting podcast generator. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PodcastGenerator 3.2.9 contains a blind server-side request forgery vulnerability that allows attackers to inject XML in the episode upload form. Attackers can manipulate the 'shortdesc' parameter to trigger external HTTP requests to arbitrary endpoints during podcast episode creation.

Why this priority

Critical severity
Public exploit reference
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 53%)
CISA exploited list	No
Weakness	CWE-918
Published	2025-12-16
Last modified	2026-09-30

Publisher (CNA): VulnCheck · Vendor: podcastgenerator

Last updated 2026-09-30 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-12-16 17:16 UTCPublished CVE record published
2026-09-30 18:17 UTCUpdated Record last modified

podcastgenerator podcast generator DOWNGRADE

Affected: 3.2.9

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.2.9

1. Check installed version

apt-cache policy podcast-generator || rpm -q podcast-generator || podcast-generator --version

2. No fixed release: DOWNGRADE to a release before 3.2.9 (Debian / Ubuntu)

apt-cache madison podcast-generator sudo apt install podcast-generator=<VERSION_BEFORE_3.2.9> sudo apt-mark hold podcast-generator

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

dnf --showduplicates list podcast-generator sudo dnf downgrade podcast-generator-<VERSION_BEFORE_3.2.9> sudo dnf versionlock add podcast-generator

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.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora ELN · openjpeg · FIXED · 2.5.4-5.eln159 · FEDORA-2026-1a5f60f401 · source

sudo dnf upgrade --advisory=FEDORA-2026-1a5f60f401

Fedora 46 · trustedqsl · FIXED · 2.8.7-1.fc46 · FEDORA-2026-6b1bc90ebc · source

sudo dnf upgrade --advisory=FEDORA-2026-6b1bc90ebc

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: www.exploit-db.com/exploits/51565

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-2023-53899?

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

Is CVE-2023-53899 being exploited?

CVE-2023-53899 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-2023-53899 affect?

CVE-2023-53899 affects podcast generator. Severity is critical (CVSS 9.8). PodcastGenerator 3.2.9 contains a blind server-side request forgery vulnerability that allows attackers to inject XML in the episode upload form. Attackers can manipulate the 'shortdesc' parameter to trigger external HTTP requests to arbitr

How urgent is CVE-2023-53899?

Priority 59/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Related CVEs

CVE-2025-70336 MEDIUM 4.8 DOWNGRADE A Stored cross-site scripting (XSS) vulnerability in 'Create New Live Item' in PodcastGenerator 3.2.9 allows r
CVE-2023-53920 MEDIUM 5.4 DOWNGRADE PodcastGenerator 3.2.9 contains a stored cross-site scripting vulnerability in the podcast title field accessi
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CVE-2023-53918 MEDIUM 6.1 DOWNGRADE PodcastGenerator 3.2.9 contains a stored cross-site scripting vulnerability in the episode title field accessi

References

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