CVE-2019-9875Active Exploitation(sitecore / cms)

LOWCVSS 8.8 · HIGHCISA KEV

Exploitation ongoing with high activity in latest observed window (1 mentions)

Immediate actions

Prioritize remediation for sitecore cms systems immediately
Assume compromise if assets are exposed
Track advisory updates for patch or workaround availability

Recommended action window: Immediate (within 24h)

NVD description

Deserialization of Untrusted Data in the anti CSRF module in Sitecore through 9.1 allows an authenticated attacker to execute arbitrary code by sending a serialized .NET object in an HTTP POST parameter.

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3.5/ 10 priority

Sources & remediation

Listed in the CISA Known Exploited Vulnerabilities catalog. Federal remediation due date: 2025-04-16. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Patch / fix

Exploit / PoC references

Vendor / third-party advisories

Other references

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-9875

Weakness type (CWE)

CWE-502

Priority

LOW

Exploitation

ACTIVE

PoC

YES

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

Threat summary

Active exploitation appears in 1 classified signals
1 mentions across 1 observed day

What's happening

Active exploitation reported across 1 signal
Technical details provided in 1 signal
1 total mentions across 1 day

Affected systems

Vendors

sitecore

Products

cms

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Active Exploitation

1100.0%

Referenced assets1 URL

By indicator

https://pranithjain.qzz.io/threatintel/telegram?tab=firehose

Full discourse1 post

PJ@Npj844846d
Active Exploitation
🚨 Active exploitation of high-severity vulnerabilities like CVE-2019-9875 and CVE-2020-25079 is on the rise, allowing for remote code execution and deserialization of untrusted data #ThreatIntel #CyberSecurity #CVE https://pranithjain.qzz.io/threatintel/telegram?tab=firehose
Post summary
The tweet reports that CVE-2019-9875 and CVE-2020-25079 are being actively exploited in the wild, enabling remote code execution and dangerous deserialization, though it does not provide PoC code, exploit tools, patches, or detailed technical specifics.
0000047
63 followersView on X

CPE platform detail1 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	sitecore	cms	-	-	-

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