VulnSocial

CVE-2026-34906Disclosure

LOWCVSS 9.3 · CRITICAL

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

  • Hunt for exploitation attempts and persistence artifacts
  • Increase monitoring for publicly documented tradecraft
  • Track advisory updates for patch or workaround availability

Recommended action window: High priority (within 72h)

NVD description

Server-Side Template Injection (SSTI) in Wirtualna Uczelnia allows an unauthenticated attacker to perform Remote Code Execution (RCE). In the endpoint redirectToUrl and parameter redirectUrlParameter, insufficient input validation permits injection of arbitrary template expressions that are executed on the server. Successful exploitation can allow an attacker to run remote commands, including establishing a reverse shell. This issue affects Wirtualna Uczelnia versions up to wu#2016.437.295#0#20260327_105545

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1.5/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-1336

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

STABLE

Threat summary

  • Public PoC is present in monitored signal
  • 3 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • PoC mentioned or linked in 1 signal
  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • General: 1 classified signal
  • Peaked 1d ago at 2 mentions (2026-06-02); latest day: 1
  • 3 total mentions across 2 days

Deep dive

Activity timeline3 mentions / 2d
01122Mentions · 2026-06-02: 2Mentions · 2026-06-03: 1PoC Mentioned / Linked · 2026-06-03: 1Technical Details · 2026-06-02: 1Technical Details · 2026-06-03: 106-0206-03
Signal classification3 categories
Disclosure
133.3%
General
133.3%
PoC
133.3%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-06-022
Disclosure1General1
2026-06-031
PoC1
Full discourse3 posts
  • Cyber Threat Observatory | Alan Turing Institute@TuringCyberObs
    PoC

    CVE-2026-34906 (Wirtualna Uczelnia) is a critical server-side template injection flaw. Attackers may trigger server-side expression processing and achieve RCE. PoC available See full analysis https://github.com/alan-turing-institute/cyber-threat-observatory/blob/main/reports/2026-06-02/TIER_2_CVE-2026-34906.md #CyberSecurity #DigitalIdentity #EducationTechnology #RCE

    Post summary

    The post announces CVE-2026-34906, a critical server‑side template injection with potential for RCE, and notes a PoC is available on GitHub, but offers no evidence of real‑world exploitation or patches.

    02001199
    47 followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-34906 Server-Side Template Injection Remote Code Execution in Wirtualna Uczelnia 2016.437.295 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-34906

    Post summary

    The text announces CVE-2026-34906, highlighting a server‑side template injection that allows remote code execution in Wirtualna Uczelnia, but offers no PoC, exploit code, or patch details.

    0000047
    4.0K followersView on X
  • Israel@f1tym1
    General

    Vulnerabilities in Wirtualna Uczelnia software https://ift.tt/3Jg8zfA CERT Polska has received a report about 2 vulnerabilities (CVE-2026-34906 and CVE-2026-34907) found in Wirtualna Uczelnia software. Introduction to Malware Binary Triage (IMBT) Course Looking to level up …

    Post summary

    CERT Polska has reported two CVEs (CVE‑2026‑34906 and CVE‑2026‑34907) impacting Wirtualna Uczelnia software, but the post provides no further detail on the nature of the vulnerabilities, exploits, or mitigations.

    0000057
    986 followersView on X

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